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Favicon for deepseek

DeepSeek: DeepSeek V4 Flash 0731

deepseek/deepseek-v4-flash-0731

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DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows. This is the GA release of DeepSeek V4 Flash.

Modalities
In / Out Price
$0.0475 / $0.1568per 1M
Context
1.0M
Released
Jul 31, 2026
Compare
ProvidersPricingPerformanceUptimeBenchmarksAppsActivityDocumentationFAQExplore

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), or Floor (cheapest).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for DeepSeek: DeepSeek V4 Flash 0731 (Artificial Analysis, Design Arena and Vals AI)
SourceBenchmarkScore
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) Intelligence Index34.3
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) Coding Index69.1
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) Agentic Index41.0
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) GPQA Diamond90.8%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) HLE38.6%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) AA-LCR79.7%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) τ-Bench Banking39.4%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) GDPval-AA46.7%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) CritPt16.6%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) SciCode50.3%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) Terminal-Bench 4.012.1%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) Terminal-Bench 2.178.7%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) AA-Omniscience Accuracy40.4%
Artificial AnalysisDeepSeek V4 Flash 0731 (Max) AA-Omniscience Non-Hallucination Rate8.3%
Design ArenaDeepSeek-V4-Flash-0731 Models Arena 3D Elo1206
Design ArenaDeepSeek-V4-Flash-0731 Models Arena Asciiart Elo1088
Design ArenaDeepSeek-V4-Flash-0731 Models Arena Code Categories Elo1228
Design ArenaDeepSeek-V4-Flash-0731 Models Arena Data Visualization Elo1180
Design ArenaDeepSeek-V4-Flash-0731 Models Arena Game Development Elo1206
Design ArenaDeepSeek-V4-Flash-0731 Models Arena SVG Elo1182
Design ArenaDeepSeek-V4-Flash-0731 Models Arena UI Component Elo1230
Design ArenaDeepSeek-V4-Flash-0731 Models Arena Website Elo1236
Vals AIDeepSeek V4 Flash 0731 Code Migration38.6%
Vals AIDeepSeek V4 Flash 0731 CorpFin v261.8%
Vals AIDeepSeek V4 Flash 0731 CyberBench v1.172.1%
Vals AIDeepSeek V4 Flash 0731 EMB57.0%
Vals AIDeepSeek V4 Flash 0731 Finance Agent (v2)49.5%
Vals AIDeepSeek V4 Flash 0731 GPQA Diamond89.9%
Vals AIDeepSeek V4 Flash 0731 Harvey's Legal Agent Benchmark v18.3%
Vals AIDeepSeek V4 Flash 0731 IOI32.7%
Vals AIDeepSeek V4 Flash 0731 LiveCodeBench87.3%
Vals AIDeepSeek V4 Flash 0731 LegalBench77.7%
Vals AIDeepSeek V4 Flash 0731 Legal Research Bench30.3%
Vals AIDeepSeek V4 Flash 0731 MedCode41.4%
Vals AIDeepSeek V4 Flash 0731 MedScribe80.4%
Vals AIDeepSeek V4 Flash 0731 MMLU Pro86.2%
Vals AIDeepSeek V4 Flash 0731 ProgramBench0.0%
Vals AIDeepSeek V4 Flash 0731 ProofBench v1.156.0%
Vals AIDeepSeek V4 Flash 0731 SkillsBench50.7%
Vals AIDeepSeek V4 Flash 0731 SWE-bench88.8%
Vals AIDeepSeek V4 Flash 0731 Tax Agent Bench28.1%
Vals AIDeepSeek V4 Flash 0731 TaxEval v270.7%
Vals AIDeepSeek V4 Flash 0731 Terminal-Bench 4.018.7%
Vals AIDeepSeek V4 Flash 0731 Vals Index48.0%
Vals AIDeepSeek V4 Flash 0731 Vibe Code Bench v1.174.7%

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

API

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

Available through EU in-region routing

DeepSeek: DeepSeek V4 Flash 0731 is available through EU in-region routing. Requests sent to eu.openrouter.ai are decrypted in the EU and routed only to shared provider endpoints in Europe (the EU/EEA, the UK, and Switzerland).

Providers in Europe
Inceptron
Prices in Europe
  • Inceptron: $0.13/M tokens input, $0.495/M tokens output
Base URL
https://eu.openrouter.ai/api/v1
Plan
Requires Business or Enterprise. Self-serve on Business: no contract, no monthly minimum. OpenRouter Business for EU in-region routing

Fails closed: if no shared provider endpoint in Europe is available, the request errors instead of leaving the region. Requests served by your own BYOK key go to your deployment’s region, which you control. In-region routing docs

Documentation

Guides, cookbooks, blog posts, and tools for building with DeepSeek: DeepSeek V4 Flash 0731 on OpenRouter.

  • Does DeepSeek V4 Have Vision?Blog post
  • Why Use OpenRouter for DeepSeekBlog post
  • DeepSeek V4 Is Earning Agentic Token ShareBlog post

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100.00%
$0.4400$1.3200$0.014000.97s55 tps
99.80%
$0.3740$1.1220$0.037401.81s43 tps
99.81%
$0.4400$1.3200$0.028001.64s54 tps
99.96%
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99.94%
$0.3520$1.0560$0.035201.68s52 tps
97.76%
$0.2000$0.6000--1.03s69 tps
99.48%
$0.1300$0.2600$0.028000.28s188 tps
100.00%
$0.1300$0.2600$0.028000.27s145 tps
100.00%
$0.4400$1.3200$0.014001.27s99 tps
99.89%
$0.0475$0.1568$0.028000.87s35 tps
99.43%
Throughput
188tok/s

P50, best across providers

Latency
0.27s

P50, best provider

AutoExacto benchmarks
GPQA DiamondTAU-BenchNebius87.4%--NextBit90.0%78.9%Baseten (fp8)83.4%85.1%Mancer90.2%77.8%AtlasCloud90.2%77.5%Baseten (fp32)83.5%--
+22 more providers
Uptime (3d)The model was reachable. Request routed to a provider.
100.00%
Availability (3d)The model returned inference from any provider. Errors and empty responses count against it.
99.82%

Availability over the last 3 days

Last 72 hours
Availability 99.82%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.84%
Without Routing
84.17%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

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Frequently asked questions

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows. This is the GA release of DeepSeek V4 Flash.

The DeepSeek V4 Flash 0731 documentation on OpenRouter includes the Does DeepSeek V4 Have Vision? blog post, the Why Use OpenRouter for DeepSeek blog post, and the DeepSeek V4 Is Earning Agentic Token Share blog post. The quickstart covers API keys and your first request, and the API reference lists every parameter.

DeepSeek V4 Flash 0731 costs $0.0475/M input tokens and $0.1568/M output tokens, with separate rates for Cache Read at $0.028/M tokens.

DeepSeek V4 Flash 0731 has a 1,048,576 token context window. It supports up to 1,048,576 completion tokens.

Yes. DeepSeek V4 Flash 0731 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

DeepSeek V4 Flash 0731 is served by 22 providers on OpenRouter: Relace, Reka AI, DeepInfra, DigitalOcean, Wafer, Baseten (fp32), Venice, CoreWeave and 14 more. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

DeepSeek V4 Flash 0731 was released on July 31, 2026.