Page 2 | Best AI Development Platforms for OpenAI

Instructor

Instructor is a tool that enables developers to extract structured data from natural language using Large Language Models (LLMs). Integrating with Python's Pydantic library allows users to define desired output structures through type hints, facilitating schema validation and seamless integration with IDEs. Instructor supports various LLM providers, including OpenAI, Anthropic, Litellm, and Cohere, offering flexibility in implementation. Its customizable nature permits the definition of validators and custom error messages, enhancing data validation processes. Instructor is trusted by engineers from platforms like Langflow, underscoring its reliability and effectiveness in managing structured outputs powered by LLMs. Instructor is powered by Pydantic, which is powered by type hints. Schema validation and prompting are controlled by type annotations; less to learn, and less code to write, and it integrates with your IDE.

Starting Price: Free

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Appaca

Appaca is a no-code platform that enables users to build and deploy AI-powered applications swiftly and efficiently. It offers a comprehensive suite of features, including a customizable interface editor, action workflows, an AI studio for model creation, and a built-in database for data management. The platform supports integration with leading AI models such as OpenAI's GPT, Google's Gemini, Anthropic's Claude, and OpenAI's DALL·E 3, allowing for diverse functionalities like text and image generation. Appaca also provides user management and monetization tools, including Stripe integration for subscription services and AI credit billing. This makes it suitable for businesses, agencies, influencers, and startups aiming to create white-label AI solutions, web applications, internal tools, chatbots, and more, without the need for coding expertise.

Starting Price: $20 per month

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Mem0

Mem0 is a self-improving memory layer designed for Large Language Model (LLM) applications, enabling personalized AI experiences that save costs and delight users. It remembers user preferences, adapts to individual needs, and continuously improves over time. Key features include enhancing future conversations by building smarter AI that learns from every interaction, reducing LLM costs by up to 80% through intelligent data filtering, delivering more accurate and personalized AI outputs by leveraging historical context, and offering easy integration compatible with platforms like OpenAI and Claude. Mem0 is perfect for projects such as customer support, where chatbots remember past interactions to reduce repetition and speed up resolution times; personal AI companions that recall preferences and past conversations for more meaningful interactions; AI agents that learn from each interaction to become more personalized and effective over time.

Starting Price: $249 per month

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Basalt

Basalt is an AI-building platform that helps teams quickly create, test, and launch better AI features. With Basalt, you can prototype quickly using our no-code playground, allowing you to draft prompts with co-pilot guidance and structured sections. Iterate efficiently by saving and switching between versions and models, leveraging multi-model support and versioning. Improve your prompts with recommendations from our co-pilot. Evaluate and iterate by testing with realistic cases, upload your dataset, or let Basalt generate it for you. Run your prompt at scale on multiple test cases and build confidence with evaluators and expert evaluation sessions. Deploy seamlessly with the Basalt SDK, abstracting and deploying prompts in your codebase. Monitor by capturing logs and monitoring usage in production, and optimize by staying informed of new errors and edge cases.

Starting Price: Free

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Devs.ai

Devs.ai is a platform that enables users to create unlimited AI agents in minutes without requiring credit card information. It provides access to major AI models from providers such as Meta, Anthropic, OpenAI, Gemini, and Cohere, allowing users to select the most suitable large language model for their specific business purposes. Devs.ai features a low/no-code solution, empowering users to effortlessly create tailor-made AI agents for their business and clientele. Emphasizing enterprise-grade governance, Devs.ai ensures that organizations can build AI using even the most sensitive data, maintaining meticulous oversight and control over AI implementations. The collaborative workspace fosters seamless teamwork, enabling teams to gain new insights, unlock innovation, and increase productivity. Users can train their AI with proprietary assets to derive results pertinent to their business, unlocking unique insights.

Starting Price: $15 per month

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Prompteus

Alibaba

Prompteus is a platform designed to simplify the creation, management, and scaling of AI workflows, enabling users to build production-ready AI systems in minutes. It offers a visual editor to design workflows, which can then be deployed as secure, standalone APIs, eliminating the need for backend management. Prompteus supports multi-LLM integration, allowing users to connect to various large language models with dynamic switching and optimized costs. It also provides features like request-level logging for performance tracking, smarter caching to reduce latency and save on costs, and seamless integration into existing applications via simple APIs. Prompteus is serverless, scalable, and secure by default, ensuring efficient AI operation across different traffic volumes without infrastructure concerns. Prompteus helps users reduce AI provider costs by up to 40% through semantic caching and detailed analytics on usage patterns.

Starting Price: $5 per 100,000 requests

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Model Context Protocol (MCP)

Anthropic

Model Context Protocol (MCP) is an open protocol designed to standardize how applications provide context to large language models (LLMs). It acts as a universal connector, similar to a USB-C port, allowing LLMs to seamlessly integrate with various data sources and tools. MCP supports a client-server architecture, enabling programs (clients) to interact with lightweight servers that expose specific capabilities. With growing pre-built integrations and flexibility to switch between LLM vendors, MCP helps users build complex workflows and AI agents while ensuring secure data management within their infrastructure.

Starting Price: Free

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AgentPass.ai

AgentPass.ai is a secure platform designed to facilitate the deployment of AI agents in enterprise environments by providing production-ready Model Context Protocol (MCP) servers. It allows users to set up fully hosted MCP servers without the need for coding, incorporating built-in features such as user authentication, authorization, and access control. Developers can convert OpenAPI specifications into MCP-compatible tool definitions, enabling the management of complex API ecosystems through nested structures. AgentPass.ai also offers observability features like analytics, audit logs, and performance monitoring, and supports multi-tenant architecture for managing multiple environments. By utilizing AgentPass.ai, organizations can safely scale AI automation while maintaining centralized oversight and compliance across their AI agent deployments.

Starting Price: $99 per month

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TensorBlock

TensorBlock is an open source AI infrastructure platform designed to democratize access to large language models through two complementary components. It has a self-hosted, privacy-first API gateway that unifies connections to any LLM provider under a single, OpenAI-compatible endpoint, with encrypted key management, dynamic model routing, usage analytics, and cost-optimized orchestration. TensorBlock Studio delivers a lightweight, developer-friendly multi-LLM interaction workspace featuring a plugin-based UI, extensible prompt workflows, real-time conversation history, and integrated natural-language APIs for seamless prompt engineering and model comparison. Built on a modular, scalable architecture and guided by principles of openness, composability, and fairness, TensorBlock enables organizations to experiment, deploy, and manage AI agents with full control and minimal infrastructure overhead.

Starting Price: Free

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Pinecone

The AI Knowledge Platform. The Pinecone Database, Inference, and Assistant make building high-performance vector search apps easy. Developer-friendly, fully managed, and easily scalable without infrastructure hassles. Once you have vector embeddings, manage and search through them in Pinecone to power semantic search, recommenders, and other applications that rely on relevant information retrieval. Ultra-low query latency, even with billions of items. Give users a great experience. Live index updates when you add, edit, or delete data. Your data is ready right away. Combine vector search with metadata filters for more relevant and faster results. Launch, use, and scale your vector search service with our easy API, without worrying about infrastructure or algorithms. We'll keep it running smoothly and securely.

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Berri AI

Never worry about being rate-limited, context window limitations, or rotated keys again

Starting Price: $10 per month

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Portkey

Portkey.ai

Launch production-ready apps with the LMOps stack for monitoring, model management, and more. Replace your OpenAI or other provider APIs with the Portkey endpoint. Manage prompts, engines, parameters, and versions in Portkey. Switch, test, and upgrade models with confidence! View your app performance & user level aggregate metics to optimise usage and API costs Keep your user data secure from attacks and inadvertent exposure. Get proactive alerts when things go bad. A/B test your models in the real world and deploy the best performers. We built apps on top of LLM APIs for the past 2 and a half years and realised that while building a PoC took a weekend, taking it to production & managing it was a pain! We're building Portkey to help you succeed in deploying large language models APIs in your applications. Regardless of you trying Portkey, we're always happy to help!

Starting Price: $49 per month

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Parea

The prompt engineering platform to experiment with different prompt versions, evaluate and compare prompts across a suite of tests, optimize prompts with one-click, share, and more. Optimize your AI development workflow. Key features to help you get and identify the best prompts for your production use cases. Side-by-side comparison of prompts across test cases with evaluation. CSV import test cases, and define custom evaluation metrics. Improve LLM results with automatic prompt and template optimization. View and manage all prompt versions and create OpenAI functions. Access all of your prompts programmatically, including observability and analytics. Determine the costs, latency, and efficacy of each prompt. Start enhancing your prompt engineering workflow with Parea today. Parea makes it easy for developers to improve the performance of their LLM apps through rigorous testing and version control.

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Entry Point AI

Entry Point AI is the modern AI optimization platform for proprietary and open source language models. Manage prompts, fine-tunes, and evals all in one place. When you reach the limits of prompt engineering, it’s time to fine-tune a model, and we make it easy. Fine-tuning is showing a model how to behave, not telling. It works together with prompt engineering and retrieval-augmented generation (RAG) to leverage the full potential of AI models. Fine-tuning can help you to get better quality from your prompts. Think of it like an upgrade to few-shot learning that bakes the examples into the model itself. For simpler tasks, you can train a lighter model to perform at or above the level of a higher-quality model, greatly reducing latency and cost. Train your model not to respond in certain ways to users, for safety, to protect your brand, and to get the formatting right. Cover edge cases and steer model behavior by adding examples to your dataset.

Starting Price: $49 per month

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DataChain

iterative.ai

DataChain connects unstructured data in cloud storage with AI models and APIs, enabling instant data insights by leveraging foundational models and API calls to quickly understand your unstructured files in storage. Its Pythonic stack accelerates development tenfold by switching to Python-based data wrangling without SQL data islands. DataChain ensures dataset versioning, guaranteeing traceability and full reproducibility for every dataset to streamline team collaboration and ensure data integrity. It allows you to analyze your data where it lives, keeping raw data in storage (S3, GCP, Azure, or local) while storing metadata in inefficient data warehouses. DataChain offers tools and integrations that are cloud-agnostic for both storage and computing. With DataChain, you can query your unstructured multi-modal data, apply intelligent AI filters to curate data for training and snapshot your unstructured data, the code for data selection, and any stored or computed metadata.

Starting Price: Free

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Kitten Stack

Kitten Stack is an all-in-one unified platform for building, optimizing, and deploying LLM applications. It eliminates common infrastructure challenges by providing robust tools and managed infrastructure, enabling developers to go from idea to production-grade AI applications faster and easier than ever before. Kitten Stack streamlines LLM application development by combining managed RAG infrastructure, unified model access, and comprehensive analytics into a single platform, allowing developers to focus on creating exceptional user experiences rather than wrestling with backend infrastructure. Core Capabilities: Instant RAG Engine: Securely connect private documents (PDF, DOCX, TXT) and live web data in minutes. Kitten Stack handles the complexity of data ingestion, parsing, chunking, embedding, and retrieval. Unified Model Gateway: Access 100+ AI models (OpenAI, Anthropic, Google, etc.) through a single platform.

Starting Price: $50/month

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Orq.ai

Orq.ai is the #1 platform for software teams to operate agentic AI systems at scale. Optimize prompts, deploy use cases, and monitor performance, no blind spots, no vibe checks. Experiment with prompts and LLM configurations before moving to production. Evaluate agentic AI systems in offline environments. Roll out GenAI features to specific user groups with guardrails, data privacy safeguards, and advanced RAG pipelines. Visualize all events triggered by agents for fast debugging. Get granular control on cost, latency, and performance. Connect to your favorite AI models, or bring your own. Speed up your workflow with out-of-the-box components built for agentic AI systems. Manage core stages of the LLM app lifecycle in one central platform. Self-hosted or hybrid deployment with SOC 2 and GDPR compliance for enterprise security.

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Vertesia

Vertesia is a unified, low-code generative AI platform that enables enterprise teams to rapidly build, deploy, and operate GenAI applications and agents at scale. Designed for both business professionals and IT specialists, Vertesia offers a frictionless development experience, allowing users to go from prototype to production without extensive timelines or heavy infrastructure. It supports multiple generative AI models from leading inference providers, providing flexibility and preventing vendor lock-in. Vertesia's agentic retrieval-augmented generation (RAG) pipeline enhances generative AI accuracy and performance by automating and accelerating content preparation, including intelligent document processing and semantic chunking. With enterprise-grade security, SOC2 compliance, and support for leading cloud infrastructures like AWS, GCP, and Azure, Vertesia ensures secure and scalable deployments.

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Scale GenAI Platform

Scale AI

Build, test, and optimize Generative AI applications that unlock the value of your data. Optimize LLM performance for your domain-specific use cases with our advanced retrieval augmented generation (RAG) pipelines, state-of-the-art test and evaluation platform, and our industry-leading ML expertise. We help deliver value from AI investments faster with better data by providing an end-to-end solution to manage the entire ML lifecycle. Combining cutting edge technology with operational excellence, we help teams develop the highest-quality datasets because better data leads to better AI.

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Steamship

Ship AI faster with managed, cloud-hosted AI packages. Full, built-in support for GPT-4. No API tokens are necessary. Build with our low code framework. Integrations with all major models are built-in. Deploy for an instant API. Scale and share without managing infrastructure. Turn prompts, prompt chains, and basic Python into a managed API. Turn a clever prompt into a published API you can share. Add logic and routing smarts with Python. Steamship connects to your favorite models and services so that you don't have to learn a new API for every provider. Steamship persists in model output in a standardized format. Consolidate training, inference, vector search, and endpoint hosting. Import, transcribe, or generate text. Run all the models you want on it. Query across the results with ShipQL. Packages are full-stack, cloud-hosted AI apps. Each instance you create provides an API and private data workspace.

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UBOS

Everything you need to transform your ideas into AI apps in minutes. Anyone can create next-generation AI-powered apps in 10 minutes, from professional developers to business users, using our no-code/low-code platform. Seamlessly integrate APIs like ChatGPT, Dalle-2, and Codex from Open AI, and even use custom ML models. Build custom admin client and CRUD functionalities to effectively manage sales, inventory, contracts, and more. Create dynamic dashboards that transform data into actionable insights and fuel innovation for your business. Easily create a chatbot to improve customer support and create a true omnichannel experience with multiple integrations. An all-in-one cloud platform combines low-code/no-code tools with edge technologies to make your web application scalable, secure, and easy to manage. Transform your software development process with our no-code/low-code platform, perfect for both business users and professional developers alike.

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ZBrain

Import data in any format, including text or images from any source like documents, cloud or APIs and launch a ChatGPT-like interface based on your preferred large language model like GPT-4, FLAN and GPT-NeoX and answer user queries based on the imported data. A comprehensive list of sample questions across various departments in different industries that can be asked to an LLM connected to a company’s private data source through ZBrain. Seamless integration of ZBrain as a prompt-response service into your existing tools and products. Enhance your deployment experience with secure options like ZBrain Cloud or the flexibility to self-host on a private infrastructure. ZBrain Flow empowers you to create business logic without writing any code. The intuitive flow interface allows you to connect multiple large language models, prompt templates, and image and video models with extraction and parsing tools to build powerful and intelligent applications.

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LlamaIndex

LlamaIndex is a “data framework” to help you build LLM apps. Connect semi-structured data from API's like Slack, Salesforce, Notion, etc. LlamaIndex is a simple, flexible data framework for connecting custom data sources to large language models. LlamaIndex provides the key tools to augment your LLM applications with data. Connect your existing data sources and data formats (API's, PDF's, documents, SQL, etc.) to use with a large language model application. Store and index your data for different use cases. Integrate with downstream vector store and database providers. LlamaIndex provides a query interface that accepts any input prompt over your data and returns a knowledge-augmented response. Connect unstructured sources such as documents, raw text files, PDF's, videos, images, etc. Easily integrate structured data sources from Excel, SQL, etc. Provides ways to structure your data (indices, graphs) so that this data can be easily used with LLMs.

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Neum AI

No one wants their AI to respond with out-of-date information to a customer. ‍Neum AI helps companies have accurate and up-to-date context in their AI applications. Use built-in connectors for data sources like Amazon S3 and Azure Blob Storage, vector stores like Pinecone and Weaviate to set up your data pipelines in minutes. Supercharge your data pipeline by transforming and embedding your data with built-in connectors for embedding models like OpenAI and Replicate, and serverless functions like Azure Functions and AWS Lambda. Leverage role-based access controls to make sure only the right people can access specific vectors. Bring your own embedding models, vector stores and sources. Ask us about how you can even run Neum AI in your own cloud.

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Byne

Retrieval-augmented generation, agents, and more start building in the cloud and deploying on your server. We charge a flat fee per request. There are two types of requests: document indexation and generation. Document indexation is the addition of a document to your knowledge base. Document indexation, which is the addition of a document to your knowledge base and generation, which creates LLM writing based on your knowledge base RAG. Build a RAG workflow by deploying off-the-shelf components and prototype a system that works for your case. We support many auxiliary features, including reverse tracing of output to documents, and ingestion for many file formats. Enable the LLM to use tools by leveraging Agents. An Agent-powered system can decide which data it needs and search for it. Our implementation of agents provides a simple hosting for execution layers and pre-build agents for many use cases.

Starting Price: 2¢ per generation request

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Distyl

Distyl builds AI Systems that the F500 trusts to reliably power and automate their core operations. We deploy production-ready software in months. Distyl’s AI Native methodology puts AI into every facet of your operations. We rapidly generate, refine, and deploy scalable solutions that transform your business processes. AI creates automated processes with human feedback. This accelerates time-to-value from months to days. Our AI systems are customized to your organization’s business context and SME expertise, providing understandable transparency and actionable insights, explainable AI, and no black box. Our world-class team of engineers and researchers are forward-deployed to own the outcome alongside you. Our AI uses organizational assets and SME business context to automatically create AI native workflows called “routines”. SMEs can iterate on and evolve the routines, with all changes versioned, reviewable, and end-to-end deployment tested to ensure system reliability.

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Llama Guard

Baseplate

Embed and store documents, images, and more. High-performance retrieval workflows with no additional work. Connect your data via the UI or API. Baseplate handles embedding, storage, and version control so your data is always in-sync and up-to-date. Hybrid Search with custom embeddings tuned for your data. Get accurate results regardless of the type, size, or domain of the data you're searching through. Prompt any LLM with data from your database. Connect search results to a prompt through the App Builder. Deploy your app with a few clicks. Collect logs, human feedback, and more using Baseplate Endpoints. Baseplate Databases allow you to embed and store your data in the same table as the images, links, and text that make your LLM App great. Edit your vectors through the UI, or programmatically. We version your data so you never have to worry about stale data or duplicates.

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Unremot

Unremot is a go-to place for anyone aspiring to build an AI product - with 120+ pre-built APIs, you can build and launch AI products 2X faster, at 1/3rd cost. Even, some of the most complicated AI product APIs take less than a few minutes to deploy and launch, with minimal code or even no-code. Choose an AI API that you want to integrate to your product from 120+ APIs we have on Unremot. Provide your API private key to authenticate Unremot to access the API. Use unremot unique URL to connect the product API - the whole process takes only minutes, instead of days and weeks.

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Tune AI

NimbleBox

Leverage the power of custom models to build your competitive advantage. With our enterprise Gen AI stack, go beyond your imagination and offload manual tasks to powerful assistants instantly – the sky is the limit. For enterprises where data security is paramount, fine-tune and deploy generative AI models on your own cloud, securely.

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Best AI Development Platforms for OpenAI - Page 2

Compare the Top AI Development Platforms that integrate with OpenAI as of July 2025 - Page 2

Instructor

Appaca

Mem0

Basalt

Devs.ai

Prompteus

Model Context Protocol (MCP)

AgentPass.ai

TensorBlock

Pinecone

Berri AI

Portkey

Parea

Entry Point AI

DataChain

Kitten Stack

Orq.ai

Vertesia

Scale GenAI Platform

Steamship

UBOS

ZBrain

LlamaIndex

Neum AI

Byne

Distyl

Llama Guard

Baseplate

Unremot

Tune AI

Best AI Development Platforms for OpenAI - Page 2

Compare the Top AI Development Platforms that integrate with OpenAI as of July 2025 - Page 2

Instructor

Appaca

Mem0

Basalt

Devs.ai

Prompteus

Model Context Protocol (MCP)

AgentPass.ai

TensorBlock

Pinecone

Berri AI

Portkey

Parea

Entry Point AI

DataChain

Kitten Stack

Orq.ai

Vertesia

Scale GenAI Platform

Steamship

UBOS

ZBrain

LlamaIndex

Neum AI

Byne

Distyl

Llama Guard

Baseplate

Unremot

Tune AI

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