MuiRouterDeepSeek V4 Flash Released: High-Throughput 284B MoE, Now Available on MuiRouter
DeepSeek V4 Flash brings 284B total parameters, 1M context window, and ultra-low prompt caching costs. MuiRouter supports it via API and Playground with pay-as-you-go pricing.
On July 31, 2026, DeepSeek officially released DeepSeek V4 Flash (version DeepSeek-V4-Flash-0731). Positioned as the high-throughput, ultra-fast MoE (Mixture-of-Experts) model in the DeepSeek V4 family, V4 Flash leverages a 284B total parameter / 13B active parameter architecture to deliver impressive performance across coding, agentic workflows, and long-context reasoning tasks.
Just a little over a month after the release of DeepSeek V4, it is remarkable how they managed to significantly boost the model's intelligence—especially its ability to handle complex reasoning and agentic tasks—even surpassing the flagship DeepSeek V4 Pro in certain benchmarks without major architectural overhauls. Releasing it at such an astonishingly low price point is truly impressive. Special thanks to retail investors in the A-share market for financing AI progress!
We have officially enabled deepseek-v4-flash on MuiRouter. Whether you use it in your terminal AI Agent or via standard OpenAI-compatible endpoints (/v1/chat/completions), you can now access DeepSeek V4 Flash with a single API key starting at just $0.14 per 1M input tokens.
Key Highlights of DeepSeek V4 Flash
According to DeepSeek's official benchmarks and release specifications:
| Feature | DeepSeek V4 Flash |
|---|---|
| Architecture | 284B total parameters Mixture-of-Experts (MoE), 13B active per token |
| Context Window | 1,048,576 tokens (1M) |
| Long-Context Attention | Hybrid Compressed Sparse Attention (CSA) + Heavily Compressed Attention (HCA) |
| Capabilities | Reasoning Content ("Thinking mode"), Tool Calls, JSON Mode & Structured Output |
| Deployment | Open weights (GGUF / Ollama local deployment) & Official API |
| Official API Pricing | $0.14 / 1M input tokens ($0.0028 Cache Hit); $0.28 / 1M output tokens |
1. 1M Context Window & Ultra-Low Prompt Caching Costs
DeepSeek V4 Flash natively supports a 1M token context window. In coding tasks and repository analysis, when paired with DeepSeek's official prompt caching, cached input tokens cost only $0.0028 per 1M tokens—a 98% discount over cache misses.
This dramatically lowers operational costs when terminal agents re-read large codebases across long multi-turn sessions.
2. Tailored for Agents and Long-Horizon Coding
The DeepSeek-V4-Flash-0731 update introduces re-post-training enhancements specifically designed for agentic loops. High output throughput enables rapid feedback cycles when an agent plans, writes code, executes terminal commands, and fixes errors autonomously.
Official Pricing & MuiRouter Billing
DeepSeek official API rates:
| Token Type | Price (per 1M tokens) |
|---|---|
| Input (Cache Miss) | $0.14 |
| Input (Cache Hit) | $0.0028 |
| Output / Reasoning | $0.28 |
On MuiRouter, we maintain transparent pay-as-you-go billing based on your exact usage with zero monthly subscriptions.
Conclusion
DeepSeek V4 Flash sets a new benchmark for speed and cost efficiency among frontier open models. Combined with MuiRouter, developers gain access to cutting-edge agentic coding capabilities at an extremely accessible price.
Try deepseek-v4-flash today in the MuiRouter Playground or directly in your terminal agent!
Reference sources
Primary source published on July 31, 2026.
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