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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

1.3M

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.

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$0.05$0.16$0.0131.94s18 tps
99.62%
$0.06$0.18$0.0150.85s19 tps
99.49%
$0.065$0.18$0.0161.25s28 tps
98.25%
$0.065$0.18$0.021.41s24 tps
99.66%
$0.08$0.252$0.02520.59s22 tps
99.80%
80% off
$0.44$0.088$1.32$0.264$0.014$0.00282.17s32 tps
98.06%
$0.09$0.195$0.01960.66s59 tps
97.88%
$0.10$0.25$0.051.51s34 tps
99.20%
$0.11$0.66$0.0070.72s59 tps
99.80%
$0.1234$0.3475$0.031252.53s5 tps
99.95%
$0.13$0.26$0.0281.45s38 tps
98.13%
$0.13$0.26$0.0281.25s31 tps
98.04%
$0.13$0.28$0.070.68s36 tps
99.97%
$0.13$0.35$0.0181.00s18 tps
99.78%
$0.14$0.28$0.030.65s49 tps
99.62%
$0.14$0.28$0.051.05s28 tps
99.75%
$0.165$0.50--0.96s9 tps
98.73%
$0.175$0.35$0.0351.05s20 tps
98.06%
$0.176$0.528$0.01761.04s56 tps
99.45%
$0.22$0.66$0.0070.89s79 tps
98.00%
$0.22$0.66$0.0281.66s30 tps
98.99%
35% off
$0.44$0.286$1.32$0.858$0.014$0.00912.26s53 tps
99.80%
$0.352$1.056$0.0121.93s54 tps
99.92%
7% off
$0.44$0.4092$1.32$1.228$0.028$0.026041.58s84 tps
99.97%
$0.44$1.32$0.0281.15s25 tps
99.62%
$0.44$1.32$0.0140.79s142 tps
99.90%
$0.44$1.32$0.0281.53s47 tps
96.97%
$0.44$1.32$0.0141.39s38 tps
99.98%

Throughput

142tok/s

P50, best across providers

Latency

0.59s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Baseten
89.5%--
Baseten
89.3%--
Fireworks
89.0%--
NextBit
89.9%76.6%
Alibaba Cloud Int.
89.4%76.8%
SiliconFlow
90.1%75.2%
+28 more providers
Uptime (3d)

100.00%

Availability (3d)

99.66%

Availability over the last 3 days

Last 72 hours
Availability 99.66%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.67%
Without Routing
89.94%

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.
9.59Ttokens
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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.
4.1Ttokens
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1.18Ttokens
4.
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Oh-My-Pi
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725Btokens
5.
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DeepSeek Harness
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699Btokens

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 27 providers on OpenRouter: OpenInference, DeepInfra, Relace, Sail Research, DigitalOcean, StreamLake, Makora, Wafer and 19 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.