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Favicon for deepseek

DeepSeek: DeepSeek V4 Flash 0731

deepseek/deepseek-v4-flash-0731

Model weights
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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

$0.05 / $0.16per 1M

Context

1M

Released

Jul 31, 2026

Compare
ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQExplore

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 Exacto (highest tool-calling accuracy).

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. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

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.

Quick Start

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.

Explore more models

AI Model RankingsRanking
$0.05$0.16$0.0130.65s16 tps
99.85%
54% off
$0.14$0.06496$0.28$0.1299$0.028$0.012990.97s89 tps
98.81%
$0.065$0.18$0.0160.94s66 tps
97.37%
$0.08$0.252$0.02520.66s29 tps
99.86%
$0.08$0.18$0.0160.84s16 tps
99.30%
$0.09$0.195$0.01960.54s65 tps
95.65%
$0.11$0.66$0.0071.06s62 tps
99.77%
$0.13$0.26$0.0281.11s48 tps
99.46%
$0.13$0.26$0.0280.98s37 tps
99.43%
$0.13$0.28$0.032.00s15 tps
99.21%
$0.13$0.28$0.070.66s97 tps
99.50%
70% off
$0.44$0.132$1.32$0.396$0.014$0.00421.32s80 tps
99.27%
$0.14$0.28$0.030.72s56 tps
98.71%
$0.14$0.28$0.050.64s50 tps
99.84%
$0.175$0.35$0.0351.23s31 tps
97.64%
$0.175$0.50--0.95s25 tps
98.62%
$0.176$0.528$0.01761.30s60 tps
99.83%
$0.22$0.66$0.0071.09s50 tps
96.11%
$0.22$0.66$0.0281.57s59 tps
99.62%
$0.22$0.66$0.0070.97s95 tps
99.99%
20% off
$0.44$0.352$1.32$1.056$0.014$0.01124.19s22 tps
97.47%
$0.40$1.20$0.012.81s56 tps
99.00%
$0.44$1.32$0.0282.50s38 tps
97.73%
$0.44$1.32$0.0281.22s99 tps
99.98%
$0.44$1.32$0.0282.68s36 tps
99.66%
$0.44$1.32$0.0141.21s34 tps
99.66%
$0.065$0.18$0.0161.87s16 tps
94.93%
$0.10$0.25$0.052.20s62 tps
95.12%
$0.08$0.18$0.0160.76s47 tps
88.05%
$0.09875$0.278$0.0251.22s27 tps
86.44%

Throughput

100tok/s

P50, best across providers

Latency

0.55s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Baseten
90.4%--
Fireworks
88.4%--
Baseten
87.9%--
DeepSeek
90.2%81.3%
NextBit
89.4%76.6%
Alibaba Cloud Int.
88.7%76.8%
+30 more providers
Uptime (3d)

100.00%

Availability (3d)

99.76%

Availability over the last 3 days

Last 72 hours
Availability 99.76%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.78%
Without Routing
87.74%

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 customization options.

1.
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Hermes Agent is an open-source, self-improving AI agent by Nous Research that runs persistently with memory across sessions, and builds reusable skills from experience. It comes with 40+ built-in tools, including web search, browser automation, and vision, plus scheduled automations and subagents.
10.1Ttokens
2.
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Cline
Cline is an open-source AI coding agent that lives inside your IDE, autonomously exploring your codebase, editing files, running terminal commands, and using browser automation.
3.98Ttokens
3.
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pi
There are many coding agents, but this one is yours.
1.22Ttokens
4.
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omp
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802Btokens
5.
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Nous Research API
Nous Research is an AI research team focused on advancing open-source AI.
641Btokens

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.

DeepSeek V4 Flash 0731 costs $0.05/M input tokens and $0.16/M output tokens, with separate rates for Cache Read at $0.013/M tokens.

DeepSeek V4 Flash 0731 has a 1,310,720 token context window. It supports up to 393,216 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 29 providers on OpenRouter: OpenInference, Baidu Qianfan, Relace, AkashML, DigitalOcean, Ambient, DeepInfra, Makora and 21 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.