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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

$0.065 / $0.18per 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
$0.065$0.18$0.021.15s28 tps
99.62%
$0.065$0.18$0.0283.16s11 tps
97.64%
51% off
$0.14$0.06846$0.28$0.1369$0.028$0.013691.89s36 tps
99.00%
51% off
$0.14$0.0686$0.28$0.1372$0.028$0.013720.97s101 tps
99.95%
$0.07$0.14$0.0140.57s84 tps
99.90%
$0.08$0.252$0.02520.79s12 tps
99.00%
$0.08$0.18$0.0160.49s48 tps
99.66%
$0.08$0.18$0.0160.54s49 tps
99.80%
40% off
$0.14$0.084$0.28$0.168$0.028$0.01682.02s77 tps
98.76%
$0.12$0.278$0.041.92s10 tps
98.60%
$0.13$0.26$0.0280.37s67 tps
99.70%
$0.13$0.28$0.030.66s74 tps
99.89%
$0.13$0.28$0.070.59s124 tps
99.86%
$0.14$0.28$0.020.68s38 tps
99.64%
$0.14$0.28$0.070.75s52 tps
99.19%
$0.14$0.28$0.030.76s45 tps
98.42%
$0.14$0.28$0.0281.66s40 tps
99.69%
$0.145$0.45--0.86s55 tps
99.43%
$0.175$0.35$0.0350.79s74 tps
98.70%
$0.176$0.528$0.01761.47s73 tps
99.99%
$0.20$0.40$0.071.53s75 tps
97.48%
$0.22$0.66$0.0070.77s76 tps
98.04%
$0.22$0.66$0.0070.87s26 tps
96.98%
$0.22$0.66$0.0070.96s139 tps
99.91%
$0.229$0.59$0.1240.88s112 tps
99.64%
$0.28$0.56$0.071.14s120 tps
96.05%
$0.44$1.32$0.0281.38s92 tps
98.98%
$0.44$1.32$0.0281.52s47 tps
96.52%
$0.44$1.32$0.0140.71s77 tps
99.95%
25% off
$0.09$0.0675$0.18$0.135$0.018$0.01350.63s45 tps
88.71%

Throughput

139tok/s

P50, best across providers

Latency

0.37s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Baseten
87.1%--
DeepSeek
90.0%77.8%
SiliconFlow
89.4%77.0%
Baidu Qianfan
89.6%76.8%
GMICloud
88.6%76.6%
+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
99.64%
Without Routing
90.67%

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.
7.26Ttokens
2.
Favicon for https://cline.bot/
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.
2.73Ttokens
3.
Favicon for https://pi.dev/
pi
There are many coding agents, but this one is yours.
871Btokens
4.
Favicon for https://omp.sh/
omp
new
592Btokens
5.
Favicon for https://portal.nousresearch.com/api-docs
Nous Research API
Nous Research is an AI research team focused on advancing open-source AI.
583Btokens

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 $0.065/M input tokens and $0.18/M output tokens, with separate rates for Cache Read at $0.02/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 also supports structured outputs via a JSON schema in response_format.

DeepSeek V4 Flash 0731 is served by 30 providers on OpenRouter: Sail Research, OpenInference, Decart, StreamLake, Baidu Qianfan, Relace, DigitalOcean, DeepInfra 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.