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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

15% off

$0.0765 / $0.153per 1M

Context

1M

Released

Jul 31, 2026

Compare
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 28 providers, including Decart, StreamLake, DigitalOcean, DeepInfra, OpenInference, Sail Research, Relace, GMICloud and 20 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 $0.0765/M input tokens and $0.153/M output tokens, with separate rates for Cache Read at $0.0153/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 $0.0765/M input tokens and $0.153/M output tokens, with separate rates for Cache Read at $0.0153/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 28 providers on OpenRouter: Decart, StreamLake, DigitalOcean, DeepInfra, OpenInference, Sail Research, Relace, GMICloud and 20 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.

44% off
$0.14$0.0786$0.28$0.1572$0.028$0.015721.63s48 tps
98.06%
$0.08$0.252$0.02520.76s16 tps
97.65%
$0.08$0.18$0.0160.85s30 tps
99.14%
$0.09$0.18$0.025.95s12 tps
98.00%
$0.105$0.21$0.0211.43s37 tps
99.15%
20% off
$0.14$0.112$0.28$0.224$0.028$0.02243.56s56 tps
97.74%
$0.13$0.28$0.070.51s104 tps
99.89%
$0.13$0.28$0.031.05s30 tps
99.32%
$0.139$0.278$0.071.43s26 tps
98.78%
$0.14$0.28$0.0280.90s80 tps
97.38%
$0.14$0.28$0.021.27s26 tps
98.90%
$0.14$0.28$0.0281.41s89 tps
99.05%
$0.14$0.28$0.030.78s46 tps
96.30%
$0.14$0.28$0.070.74s49 tps
98.59%
$0.14$0.28$0.0281.61s91 tps
99.28%
$0.14$0.28$0.0281.64s53 tps
98.70%
$0.14$0.28$0.0280.88s53 tps
95.61%
$0.14$0.28$0.0280.72s115 tps
99.73%
$0.145$0.45--1.00s39 tps
95.30%
$0.175$0.35$0.0350.99s50 tps
92.18%
$0.20$0.40$0.071.55s33 tps
97.86%
$0.28$0.56$0.070.67s182 tps
99.84%
$0.44$1.32$0.0140.71s61 tps
99.90%
$0.44$1.32$0.0140.91s70 tps
99.48%
$0.08$0.18$0.0283.20s7 tps
93.30%
$0.13$0.26$0.0280.50s60 tps
83.97%
$0.149$0.32$0.0770.81s108 tps
86.61%
15% off
$0.09$0.0765$0.18$0.153$0.018$0.01530.82s39 tps
50.81%

Throughput

182tok/s

P50, best across providers

Latency

0.50s

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%
+25 more providers
Uptime (3d)

100.00%

Availability (3d)

99.33%

Availability over the last 3 days

Last 72 hours
Availability 99.33%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
98.59%
Without Routing
83.15%

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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