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About

DeepSeek-V4-Flash is a high-efficiency Mixture-of-Experts (MoE) language model designed for fast, scalable reasoning and text generation. It features 284 billion total parameters with 13 billion activated parameters, delivering strong performance while optimizing computational cost. The model supports an extensive context window of up to one million tokens, enabling it to process large documents and complex workflows with ease. Its hybrid attention architecture enhances long-context efficiency by reducing memory and compute requirements. Trained on over 32 trillion tokens, DeepSeek-V4-Flash demonstrates solid capabilities across knowledge, reasoning, and coding tasks. It is designed for scenarios where speed and efficiency are critical, offering a balance between performance and resource usage. The model also supports multiple reasoning modes, allowing users to adjust between faster outputs and deeper analysis.

About

Excession API provides hosted access to DeepSeek V4.1 Flash and DeepSeek V4.1 Flash Abliterated through endpoints compatible with OpenAI Chat Completions, OpenAI Responses, and Anthropic Messages. Developers can use the models in their applications with streaming and tool calls, select models by API identifier, and review usage and costs. The API also provides model catalog, API key, account, and balance endpoints, with request rate limits and usage-based billing. It supports developers building AI applications and agents, including authorized security workflows using the abliterated model. Customers can add pay-as-you-go balance or choose a monthly plan with API credit. Both available models have a 1,048,576-token context limit; token rates vary by model, and monthly plan credit expires at renewal.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises 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

Developers, startups, and enterprises looking for a cost-efficient, scalable language model for fast inference, long-context processing, and real-world AI applications

Audience

Developers building AI apps and agents; security teams using Incursion Harness to investigate their systems.

Support

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

Support

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

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0.14 per 1M tokens (input)
DeepSeek V4 Flash API pricing per 1 million tokens is $0.14 for regular cache-miss inputs, $0.0028 for cache-hit inputs, and $0.28 for outputs.
Free Version Supported
Free Trial Not Supported

Pricing

$20/month
Starter costs $20/month and includes $30 in plan credit; Pro is $100/month for $175; Max is $200/month for $400; Ultra is $500/month for $1,250. Each plan covers one person, and unused plan credit expires at renewal. Pay-as-you-go top-ups range from $10 to $1,000; there is no subscription, and the balance does not expire while the account remains open. Per 1 million tokens, DeepSeek V4.1 Flash costs $0.035 for input, $0.005 for cached input, and $0.50 for output. Flash Abliterated costs $0.20 for input, $0.025 for cached input, and $0.80 for output. When all Ultra credit is used, effective rates per 1 million tokens are $0.014/$0.002/$0.20 for Flash and $0.08/$0.01/$0.32 for Flash Abliterated, for input/cached input/output, respectively.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
features 4.0 / 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:

Review this Software

Pros & Cons from Real Users

Pros

  • DeepSeek-V4-Flash is really compelling because it feels built for developers who care about performance and cost at the same time. A 1M-token context window, open weights, and a low active-parameter MoE setup make it interesting for repo analysis, long-context coding, document-heavy agents, and high-volume automation.

Cons

  • I would still test it carefully before trusting it in production. Cheap inference is great, but coding agents need reliability, strong tool use, clean multi-file edits, good recovery from mistakes, and consistent behavior over long tasks.

Training

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

Training

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

Company Information

DeepSeek
Founded: 2023
China
deepseek.com

Company Information

Excession Labs
excessionlabs.ai/api

Alternatives

Alternatives

GPT-6.1 Sol

GPT-6.1 Sol

OpenAI
UncensoredLLM

UncensoredLLM

Uplink Switch LLC
DeepSeek-V4

DeepSeek-V4

DeepSeek

Categories

AI Coding Models Supported
AI Models Supported

Categories

LLM API Supported

Integrations

Anthropic Not Supported
Buda Supported
Cheaper Inference Supported
Claude Code Not Supported
Cline Supported
ClinePass Supported
DeepSeek Supported
DeepSeek Harness Supported
DeepSeek-V4 Supported
Novita AI Supported
OpenAI Not Supported
OpenClaw Supported
OpenCode Not Supported
OpenTag Supported
Oxlo.ai Supported
Reasonix Supported
SnapVee Studio Supported
Together AI Supported
Vercel AI Gateway Supported
ZooClaw Supported

Integrations

Anthropic Supported
Buda Not Supported
Cheaper Inference Not Supported
Claude Code Supported
Cline Not Supported
ClinePass Not Supported
DeepSeek Not Supported
DeepSeek Harness Not Supported
DeepSeek-V4 Not Supported
Novita AI Not Supported
OpenAI Supported
OpenClaw Not Supported
OpenCode Supported
OpenTag Not Supported
Oxlo.ai Not Supported
Reasonix Not Supported
SnapVee Studio Not Supported
Together AI Not Supported
Vercel AI Gateway Not Supported
ZooClaw Not Supported
Claim DeepSeek-V4-Flash and update features and information
Claim DeepSeek-V4-Flash and update features and information
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Claim Excession Labs and update features and information