Claude Opus 4.8

Claude Opus 4.8

Anthropic
OpenAI Bel

OpenAI Bel

OpenAI
+
+

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About

Claude Opus 4.8 is a powerful AI model from Anthropic designed to deliver stronger coding, reasoning, agentic workflows, and advanced collaboration capabilities for developers, enterprises, and AI-powered productivity tasks. The model builds on Claude Opus 4.7 with improvements across coding benchmarks, practical knowledge work, alignment, and reliability while maintaining the same pricing structure. Claude Opus 4.8 introduces enhanced honesty and reasoning behavior, making it less likely to generate unsupported claims or overlook flaws during complex tasks such as software development and agent execution. The release also includes new features such as effort control settings, fast mode for lower-cost high-speed processing, and dynamic workflows in Claude Code that allow the system to coordinate hundreds of parallel subagents for large-scale tasks.

About

OpenAI Bel is the reported codename of an unreleased artificial intelligence foundation model associated with OpenAI. Unofficial reports describe it as a large-scale pretraining project intended to support future generations of AI models. The project has been linked in speculative reporting to OpenAI's Astra model family and potential successors to GPT-6. Some sources claim that Bel contains more than 10 trillion parameters, although this figure has not been independently verified. OpenAI has not published official technical specifications, benchmark results, or documentation confirming the project's capabilities. Bel is not currently available as a publicly documented model through ChatGPT or the OpenAI API.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Claude Opus 4.8 is designed for developers, enterprises, software engineers, AI researchers, technical teams, and organizations seeking advanced AI-powered coding, reasoning, autonomous workflows, and large-scale intelligent automation capabilities

Audience

AI researchers, machine learning engineers, software developers, enterprise AI teams, and organizations evaluating advanced language models

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$5 per 1M (input)
$5 per million input tokens and $25 per million output tokens. Pricing for fast mode is $10 per million input tokens and $50 per million output tokens.
Free Version Not Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Pros & Cons from Real Users

Pros

  • Claude Opus 4.8 is easily one of the most impressive AI models I’ve used as a developer. The biggest difference compared to many other coding assistants is how well it handles complex, multi-step tasks without losing context. It feels less like a chatbot and more like an experienced engineering partner. Excellent code quality and architectural reasoning Strong long-context performance for large projects Better at identifying uncertainty and potential mistakes Produces cleaner, more maintainable code suggestions Handles complex debugging and refactoring tasks extremely well

Cons

  • Can be slower when working through deeper reasoning tasks Premium capabilities may be overkill for simple coding needs Occasionally provides more detail than necessary for straightforward questions

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Anthropic
Founded: 2021
United States
claude.ai/

Company Information

OpenAI
Founded: 2015
United States
openai.com

Alternatives

Alternatives

Grok 5

Grok 5

SpaceXSI
Claude Sonnet 5

Claude Sonnet 5

Anthropic
GPT-6 Astra

GPT-6 Astra

OpenAI

Categories

AI Coding Models Supported
AI Models Supported
AI Vision Models Supported
Foundation Models Supported
Multimodal Models Supported

Categories

AI Coding Models Supported
AI Models Supported
AI Vision Models Supported
Foundation Models Supported
Multimodal Models Supported

Integrations

.NET Supported
Amp Supported
Augment Code Supported
C++ Supported
Dessix Supported
Devin Supported
Devin Desktop Supported
Flowise Supported
GitHub Supported
Go Supported
HTML Supported
Higgsfield Supercomputer Supported
OpenCode Supported
Pi Agent Supported
PowerShell Supported
Python Supported
React Supported
Simtheory Supported
TypeScript Supported
Verdent Supported

Integrations

.NET Supported
Amp Supported
Augment Code Supported
C++ Supported
Dessix Supported
Devin Supported
Devin Desktop Supported
Flowise Supported
GitHub Supported
Go Supported
HTML Supported
Higgsfield Supercomputer Supported
OpenCode Supported
Pi Agent Supported
PowerShell Supported
Python Supported
React Supported
Simtheory Supported
TypeScript Supported
Verdent Supported
Claim Claude Opus 4.8 and update features and information
Claim Claude Opus 4.8 and update features and information
Claim OpenAI Bel and update features and information
Claim OpenAI Bel and update features and information