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DeepSeek · Released Jul 31, 2026

DeepSeek V4 Flash 0731

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....

ReasoningOpen weights
  • Top 29%GPQA Diamond
  • Top 31%WebDev Arena
  • Top 35%ProofBench
  • Top 37%CritPt
Compare in showdown → OpenRouter ↗ All DeepSeek models
Released
Jul 31 2026
Context window
1M 131K out
Input / 1M tokens
$0.44 from $0.011
Output / 1M tokens
$1.32 from $0.12

Where to run it

24 providers compared

Cheapest: OpenInference at $0.012 / $0.12 per 1M input / output tokens — 94% less than the priciest option.

ProviderInputOutputCache readContextMax outputUptimevs. best
OpenInferenceFP4 $0.012 $0.12 $0.0031M944K95.8%24h Cheapest
DeepInfraFP8 $0.06 $0.18 $0.0151M384K100%24h +131%
RelaceFP4 $0.011 $0.45 $0.0111M944K99.8%24h +210%
Reka $0.021 $0.53 $0.006262K131K100%24h +279%
DigitalOcean $0.12 $0.24 $0.0241M944K99.9%24h +281%
Sail Researchus · FP4 $0.15 $0.15 $0.0421M944K100%24h +285%
Sail ResearchFP4 $0.15 $0.15 $0.0421M944K100%24h +285%
Waferfast · NVFP4 $0.14 $0.23 $0.141M944K100%24h +317%
Venice $0.13 $0.26 $0.0281M33K96.5%24h +317%
BaseTenFP8 $0.13 $0.26 $0.0281M384K94.3%24h +317%
BaseTenFP32 $0.13 $0.26 $0.0281M384K93.7%24h +317%
CoreWeaveFP8 $0.13 $0.28 $0.07262K236K100%24h +329%
Together $0.14 $0.28 $0.031M944K99.9%24h +349%
Cohere $0.14 $0.28 $0.071M384K99.4%24h +349%
ParasailFP8 $0.14 $0.28 $0.051M944K98.1%24h +349%
InceptronFP4 $0.13 $0.40 $0.0271M944K99.9%24h +406%
StreamLakeFP8 $0.13 $0.40 $0.0041.02M384K100%24h +408%
Mancer 2FP8 $0.20 $0.60 —1M944K99.7%24h +669%
SiliconFlowFP8 $0.22 $0.66 $0.0281M393K99.9%24h +746%
GMICloudFP8 $0.29 $0.86 $0.0091.05M944K100%24h +1000%
Alibaba $0.35 $1.06 $0.0351M393K99.4%24h +1254%
Alibabaus-east-1 $0.37 $1.12 $0.0371M393K100%24h +1338%
NovitaFP8 $0.41 $1.23 $0.0261M393K100%24h +1474%
Phala $0.44 $1.32 $0.0281M393K100%24h +1592%
BaiduFP8 $0.44 $1.32 $0.0141M131K100%24h +1592%
Cloudflare $0.44 $1.32 $0.0141M944K100%24h +1592%
AtlasCloudFP4 $0.44 $1.32 $0.0281M393K99.3%24h +1592%

Value

Price vs. performance

2 models score higher for the same price or lesson GPQA Diamond, e.g. Kimi K3.
25.3%49.0%72.7%96.4% $0.01$0.10$1.00$10.00$100.00 Gemini 4 Argon (Google) — 96.4% · $2.00/1M in Claude Haiku 5.5 (Anthropic) — 89.6% · $0.10/1M in Mistral Large 4 (Mistral) — 88.1% · $0.68/1M in GPT-6.1 Sol (OpenAI) — 95.4% · $2.00/1M in Claude Sonnet 5.5 (Anthropic) — 95.6% · $2.00/1M in GPT-6 Luna (OpenAI) — 90.5% · $0.10/1M in GPT-6 Sol (OpenAI) — 94.3% · $2.00/1M in Claude Opus 5.5 (Anthropic) — 90.6% · $4.00/1M in Grok 4.7 (xAI) — 92.7% · $2.00/1M in GPT-6 Astra (OpenAI) — 95.8% · $10.00/1M in Qwen3.8 Max (0902) (Qwen) — 92.7% · $2.00/1M in Gemini 3.8 Flash (Google) — 95.4% · $0.82/1M in GLM 5.3 Flash (Z.ai) — 90.1% · $0.047/1M in GLM 5.3 (Z.ai) — 90.9% · $0.079/1M in Gemini 3.7 Flash (Google) — 94.8% · $0.75/1M in Grok 4.6 (xAI) — 94.0% · $2.00/1M in Qwen3.7 Flash (Qwen) — 82.3% · $0.03/1M in Claude Opus 5 (Anthropic) — 93.9% · $5.00/1M in Gemini 3.6 Flash (Google) — 94.1% · $0.75/1M in Gemini 3.5 Flash Lite (Google) — 83.3% · $0.30/1M in Kimi K3 (Moonshot AI) — 93.1% · $0.24/1M in GPT-5.6 Luna (OpenAI) — 91.6% · $0.20/1M in GPT-5.6 Terra (OpenAI) — 93.3% · $2.00/1M in GPT-5.6 Sol (OpenAI) — 93.5% · $4.00/1M in Grok 4.5 (xAI) — 93.4% · $2.00/1M in Claude Sonnet 5 (Anthropic) — 90.5% · $2.00/1M in GLM 5.2 (Z.ai) — 91.9% · $0.62/1M in Kimi K2.7 Code (Moonshot AI) — 87.9% · $0.67/1M in Claude Fable 5 (Anthropic) — 85.9% · $10.00/1M in Qwen3.7 Plus (Qwen) — 87.9% · $0.32/1M in MiniMax M3 (MiniMax) — 90.9% · $0.30/1M in Claude Opus 4.8 (Anthropic) — 91.0% · $5.00/1M in Qwen3.7 Max (Qwen) — 90.9% · $1.48/1M in Gemini 3.5 Flash (Google) — 92.8% · $1.50/1M in Gemini 3.1 Flash Lite (Google) — 81.8% · $0.25/1M in Grok 4.3 (xAI) — 88.8% · $1.25/1M in Qwen3.5 Plus 2026-04-20 (Qwen) — 84.9% · $0.30/1M in Qwen3.6 Flash (Qwen) — 83.3% · $0.19/1M in Qwen3.6 35B A3B (Qwen) — 84.9% · $0.10/1M in Qwen3.6 27B (Qwen) — 85.9% · $0.25/1M in GPT-5.5 (OpenAI) — 90.7% · $5.00/1M in Kimi K2.6 (Moonshot AI) — 90.8% · $0.65/1M in Claude Opus 4.7 (Anthropic) — 90.1% · $5.00/1M in GLM 5.1 (Z.ai) — 89.9% · $0.97/1M in Gemma 4 26B A4B (Google) — 73.2% · $0.09/1M in Gemma 4 31B (Google) — 75.8% · $0.20/1M in Qwen3.6 Plus (Qwen) — 88.4% · $0.33/1M in GPT-5.4 Nano (OpenAI) — 78.5% · $0.20/1M in GPT-5.4 Mini (OpenAI) — 86.9% · $0.75/1M in Mistral Small 4 (Mistral) — 47.5% · $0.15/1M in Qwen3.5-9B (Qwen) — 79.0% · $0.10/1M in GPT-5.4 Pro (OpenAI) — 94.6% · $30.00/1M in GPT-5.4 (OpenAI) — 93.3% · $2.50/1M in Gemini 3.1 Flash Lite Preview (Google) — 81.8% · $0.25/1M in Qwen3.5-35B-A3B (Qwen) — 83.5% · $0.15/1M in Gemini 3.1 Pro Preview (Google) — 94.4% · $2.00/1M in Claude Sonnet 4.6 (Anthropic) — 87.4% · $3.00/1M in Qwen3.5 397B A17B (Qwen) — 86.4% · $0.39/1M in GLM 5 (Z.ai) — 87.8% · $0.60/1M in Claude Opus 4.6 (Anthropic) — 90.5% · $5.00/1M in GLM 4.7 Flash (Z.ai) — 60.5% · $0.061/1M in GLM 4.7 (Z.ai) — 83.3% · $0.54/1M in Gemini 3 Flash Preview (Google) — 89.4% · $0.50/1M in GPT-5.2 (OpenAI) — 91.4% · $1.75/1M in Ministral 3 8B 2512 (Mistral) — 27.2% · $0.15/1M in Ministral 3 3B 2512 (Mistral) — 25.3% · $0.10/1M in Mistral Large 3 2512 (Mistral) — 51.3% · $0.50/1M in Claude Opus 4.5 (Anthropic) — 86.1% · $5.00/1M in GPT-5.1 (OpenAI) — 87.6% · $1.25/1M in Claude Haiku 4.5 (Anthropic) — 71.2% · $1.00/1M in Claude Sonnet 4.5 (Anthropic) — 82.3% · $3.00/1M in GPT-5 (OpenAI) — 86.2% · $1.25/1M in GPT-5 Mini (OpenAI) — 75.0% · $0.25/1M in GPT-5 Nano (OpenAI) — 69.4% · $0.05/1M in gpt-oss-120b (OpenAI) — 75.8% · $0.15/1M in gpt-oss-20b (OpenAI) — 60.8% · $0.018/1M in Claude Opus 4.1 (Anthropic) — 77.3% · $15.00/1M in Qwen3 30B A3B Instruct 2507 (Qwen) — 55.6% · $0.09/1M in Qwen3 235B A22B Thinking 2507 (Qwen) — 80.0% · $0.45/1M in Qwen3 235B A22B Instruct 2507 (Qwen) — 70.7% · $0.09/1M in Gemini 2.5 Pro (Google) — 85.3% · $1.25/1M in Gemini 2.5 Pro Preview 06-05 (Google) — 85.3% · $1.25/1M in Qwen3 30B A3B (Qwen) — 61.7% · $0.12/1M in Qwen3 14B (Qwen) — 63.8% · $0.12/1M in Qwen3 32B (Qwen) — 65.7% · $0.08/1M in DeepSeek V4.1 Flash 1017 (DeepSeek) — 89.8% · $0.30/1M in DeepSeek V4.1 Flash (DeepSeek) — 89.8% · $0.056/1M in DeepSeek V4 Pro 0813 (DeepSeek) — 91.7% · $0.66/1M in DeepSeek V4 Pro 0423 (DeepSeek) — 91.7% · $0.95/1M in DeepSeek V4 Flash 0423 (DeepSeek) — 91.0% · $0.091/1M in R1 0528 (DeepSeek) — 76.3% · $0.50/1M in DeepSeek V4 Flash 0731 (DeepSeek) — 91.0% · $0.44/1M in DeepSeek V4 Flash 0731

DeepSeek V4 Flash 0731 Other DeepSeek Other labs Value frontier · GPQA Diamond vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.

Benchmarks

15 benchmark scores

BenchmarkScoreRankLeader
FrontierCodeSoftware engineering · Mergeable fixes for hard open-source issues 18.8% #38of 41 Claude Opus 5.554.6%
SciCodeSoftware engineering · Research-coding problems from the natural sciences 49.9% #49of 93 Claude Opus 5.566.9%
SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions 33.6% #52of 66 Gemini 4 Argon76.0%
WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) 1580 #27of 88 Claude Opus 5.51820
GPQA DiamondReasoning & knowledge · PhD-level biology, chemistry and physics questions 91.0% #26of 92 Gemini 4 Argon96.4%
ARC-AGI-2Reasoning & knowledge · Few-shot abstract reasoning on grid puzzles 61.4% #27of 63 GPT-6 Astra95.0%
ARC-AGI-1Reasoning & knowledge · Pattern induction from input–output examples 89.0% #32of 63 Gemini 4 Argon98.5%
SimpleBenchReasoning & knowledge · Common-sense trick questions about space, time and people 61.1% #18of 43 Claude Fable 581.9%
CritPtReasoning & knowledge · Open-ended, research-level physics problems 16.6% #35of 96 GPT-5.6 Sol32.3%
Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles 32.0% #47of 70 GPT-6 Astra76.0%
LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts 41.7% #47of 96 Claude Sonnet 5.568.3%
FrontierMathMaths · Expert-written problems, undergrad to early research (tiers 1–3) 57.5% #42of 72 GPT-6.1 Sol93.7%
FrontierMath Tier 4Maths · Exceptionally hard research-level problems 24.4% #41of 62 GPT-6.1 Sol100.0%
ProofBenchMaths · Graduate maths proofs verified in Lean 4 56.0% #24of 70 Claude Sonnet 5.5100.0%
OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 94.4% #39of 90 Gemini 4 Argon100.0%

Specs

Details

Model ID
deepseek/deepseek-v4-flash-0731
Developer
DeepSeek
Release date
Jul 31, 2026 ·
Context window
1,048,576 tokens
Max output
131,072 tokens
API price
$0.44 / $1.32 per 1M input / output tokens
Providers
24
Input types
text
Reasoning
Yes
Tool calling
Yes
Open weights
Yes
Free tier
No

Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.