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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

$0.04 / $0.08per 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.

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AI Model RankingsRanking
$0.04$0.08$0.0081.22s42 tps
99.06%
$0.04$0.13$0.012.19s8 tps
99.50%
$0.065$0.18$0.020.99s31 tps
99.79%
53% off
$0.14$0.0658$0.28$0.1316$0.028$0.013160.81s117 tps
99.95%
52% off
$0.14$0.0672$0.28$0.1344$0.028$0.013443.58s49 tps
99.71%
$0.08$0.252$0.02520.77s15 tps
98.96%
$0.08$0.18$0.0160.57s53 tps
99.49%
$0.08$0.18$0.0160.64s29 tps
99.00%
$0.13$0.26$0.0280.53s56 tps
98.50%
$0.13$0.28$0.030.70s56 tps
99.78%
$0.13$0.28$0.070.65s127 tps
99.92%
$0.14$0.28$0.020.76s36 tps
99.31%
$0.14$0.28$0.070.89s43 tps
98.74%
$0.14$0.28$0.031.10s34 tps
97.38%
$0.14$0.28$0.0281.89s52 tps
99.69%
$0.15$0.45--0.97s53 tps
99.19%
$0.175$0.35$0.0350.82s46 tps
99.16%
$0.20$0.40$0.071.69s70 tps
98.62%
53% off
$0.44$0.2068$0.32$0.1504$0.014$0.006581.13s43 tps
98.19%
$0.219$0.49$0.1140.77s85 tps
99.51%
$0.22$0.66$0.0070.75s80 tps
99.78%
$0.22$0.66$0.0070.80s44 tps
99.02%
$0.22$0.66$0.0070.99s157 tps
99.80%
$0.28$0.56$0.071.82s69 tps
97.57%
$0.352$1.056$0.03522.34s68 tps
99.91%
$0.44$1.32$0.0281.47s75 tps
99.95%
$0.44$1.32$0.0281.75s77 tps
98.30%
$0.44$1.32$0.0141.90s57 tps
99.96%
$0.079$0.278$0.021.66s5 tps
98.16%
29% off
$0.09$0.0639$0.18$0.1278$0.018$0.0127811.75s24 tps
79.74%

Throughput

157tok/s

P50, best across providers

Latency

0.53s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Baseten
87.1%--
DeepSeek
90.0%77.8%
SiliconFlow
89.6%77.0%
Baidu Qianfan
89.6%76.8%
GMICloud
88.6%76.6%
+28 more providers
Uptime (3d)

100.00%

Availability (3d)

99.68%

Availability over the last 3 days

Last 72 hours
Availability 99.68%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.76%
Without Routing
91.27%

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
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.
7.81Ttokens
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.
2.94Ttokens
3.
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pi
There are many coding agents, but this one is yours.
942Btokens
4.
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omp
new
631Btokens
5.
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Nous Research API
Nous Research is an AI research team focused on advancing open-source AI.
598Btokens

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 $0.04/M input tokens and $0.08/M output tokens, with separate rates for Cache Read at $0.008/M tokens.

DeepSeek V4 Flash 0731 has a 1,310,720 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 does not support response_format, so JSON output is not enforced.

DeepSeek V4 Flash 0731 is served by 30 providers on OpenRouter: Relace, OpenInference, Decart, Sail Research, Baidu Qianfan, GMICloud, Morph, DigitalOcean and 22 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.