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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

$0.065 / $0.14per 1M

Context

1M

Released

Jul 31, 2026

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ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQ

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.

About DeepSeek: DeepSeek V4 Flash 0731

OpenRouter makes DeepSeek: DeepSeek V4 Flash 0731 available through a unified, OpenAI-compatible API using the model ID deepseek/deepseek-v4-flash-0731. Requests can be routed across 30 providers, including OpenInference, Sail Research, Relace, Decart, StreamLake, Baidu Qianfan, DigitalOcean, DeepInfra and 22 more, with automatic failover when an endpoint is unavailable.

DeepSeek: DeepSeek V4 Flash 0731 accepts text and returns text. It has a 1,310,720-token context window and a maximum output of 262,144 tokens.

On OpenRouter, DeepSeek: DeepSeek V4 Flash 0731 costs $0.065/M input tokens and $0.14/M output tokens, with separate rates for Cache Read at $0.014/M tokens. Effective pricing can be lower when prompt caching applies. It was released on July 31, 2026.

More models from DeepSeek

  • DeepSeek V4 Pro 0813
  • DeepSeek V4 Pro 0423
  • DeepSeek V4 Flash 0423

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 $0.14/M output tokens, with separate rates for Cache Read at $0.014/M tokens.

DeepSeek V4 Flash 0731 has a 1,310,720 token context window. It supports up to 262,144 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: OpenInference, Sail Research, Relace, Decart, StreamLake, Baidu Qianfan, 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.

$0.065$0.14$0.0144.35s9 tps
95.84%
$0.065$0.18$0.022.50s12 tps
97.96%
$0.07$0.14$0.0140.69s45 tps
99.58%
44% off
$0.14$0.0784$0.28$0.1568$0.028$0.015681.30s29 tps
97.82%
43% off
$0.14$0.0798$0.28$0.1596$0.028$0.015960.87s120 tps
99.55%
$0.08$0.252$0.02520.60s24 tps
98.22%
$0.08$0.18$0.0160.60s47 tps
98.71%
20% off
$0.14$0.112$0.28$0.224$0.028$0.02242.29s66 tps
99.72%
$0.13$0.26$0.0283.57s23 tps
97.02%
$0.13$0.28$0.030.81s73 tps
99.72%
$0.13$0.28$0.070.51s132 tps
99.97%
$0.139$0.278$0.071.22s26 tps
99.61%
$0.14$0.28$0.020.85s44 tps
97.08%
$0.14$0.28$0.0280.75s78 tps
98.02%
$0.14$0.28$0.0281.27s64 tps
99.47%
$0.14$0.28$0.071.03s39 tps
97.31%
$0.14$0.28$0.030.81s36 tps
96.53%
$0.14$0.28$0.0281.21s59 tps
98.42%
$0.14$0.28$0.0281.38s78 tps
99.95%
$0.14$0.28$0.0281.65s57 tps
98.87%
$0.175$0.35$0.0351.19s57 tps
97.57%
$0.20$0.40$0.070.73s46 tps
98.65%
$0.22$0.66$0.0070.80s75 tps
99.90%
$0.22$0.66$0.0072.25s53 tps
95.68%
$0.242$0.726$0.02421.37s50 tps
98.06%
$0.28$0.56$0.073.90s50 tps
98.85%
$0.44$1.32$0.0140.88s60 tps
99.69%
15% off
$0.09$0.0765$0.18$0.153$0.018$0.01531.76s34 tps
91.25%
$0.145$0.45--0.92s42 tps
93.53%
$0.189$0.42$0.0971.32s66 tps
98.45%

Throughput

132tok/s

P50, best across providers

Latency

0.51s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Baseten
86.0%--
DeepSeek
90.0%77.8%
Baidu Qianfan
89.8%77.2%
SiliconFlow
89.4%77.5%
NovitaAI
88.7%76.4%
+26 more providers
Uptime (3d)

100.00%

Availability (3d)

99.20%

Availability over the last 3 days

Last 72 hours
Availability 99.20%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.74%
Without Routing
90.06%

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.

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