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Side-by-side comparison · models

DeepSeek V4 Flash vs DeepSeek V4 Pro

What we have checked about each, line by line. Every value shows where it came from and when we last confirmed it.

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Models

DeepSeek V4 Flash

Fast DeepSeek V4 lane for economical reasoning, coding, and long-context work.

97 checked values

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DeepSeek logo

Models

DeepSeek V4 Pro

Open MoE flagship with million-token context for coding and long agent runs.

104 checked values

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Checked facts

Line by line

DeepSeek V4 Flash vs DeepSeek V4 Pro, compared on checked facts
MeasureDeepSeek V4 FlashDeepSeek V4 Pro
Input price$0.090 per million tokensChecked OpenRouter models API$0.887 per million tokensChecked OpenRouter models API
Output price$0.180 per million tokensChecked OpenRouter models API$1.77 per million tokensChecked OpenRouter models API
Price on atlas-cloud$0.028 per million cached input tokensChecked OpenRouter models API$0.130 per million cached input tokensChecked OpenRouter models API
Price on atlas-cloud$0.140 per million input tokensChecked OpenRouter models API$1.68 per million input tokensChecked OpenRouter models API
Price on atlas-cloud$0.280 per million output tokensChecked OpenRouter models API$3.38 per million output tokensChecked OpenRouter models API
Price on azure$0.031 per million cached input tokensChecked OpenRouter models API$0.160 per million cached input tokensChecked OpenRouter models API
Price on azure$0.210 per million input tokensChecked OpenRouter models API$1.91 per million input tokensChecked OpenRouter models API
Price on azure$0.560 per million output tokensChecked OpenRouter models API$3.83 per million output tokensChecked OpenRouter models API
Price on baidu$0.0100 per million cached input tokensChecked OpenRouter models API$0.074 per million cached input tokensChecked OpenRouter models API
Price on baidu$0.050 per million input tokensChecked OpenRouter models API$0.889 per million input tokensChecked OpenRouter models API
Price on baidu$0.100 per million output tokensChecked OpenRouter models API$1.78 per million output tokensChecked OpenRouter models API
Price on cloudflare$0.014 per million cached input tokensChecked OpenRouter models API$0.200 per million cached input tokensChecked OpenRouter models API
Price on cloudflare$0.440 per million input tokensChecked OpenRouter models API$1.15 per million input tokensChecked OpenRouter models API
Price on cloudflare$1.32 per million output tokensChecked OpenRouter models API$2.55 per million output tokensChecked OpenRouter models API
Price on crusoe$0.030 per million cached input tokensChecked OpenRouter models API$0.150 per million cached input tokensChecked OpenRouter models API
Price on crusoe$0.140 per million input tokensChecked OpenRouter models API$1.74 per million input tokensChecked OpenRouter models API
Price on crusoe$0.280 per million output tokensChecked OpenRouter models API$3.48 per million output tokensChecked OpenRouter models API
Price on deepinfra$0.018 per million cached input tokensChecked OpenRouter models API$0.100 per million cached input tokensChecked OpenRouter models API
Price on deepinfra$0.090 per million input tokensChecked OpenRouter models API$1.30 per million input tokensChecked OpenRouter models API
Price on deepinfra$0.180 per million output tokensChecked OpenRouter models API$2.60 per million output tokensChecked OpenRouter models API
Price on digitalocean$0.020 per million cached input tokensChecked OpenRouter models API$0.209 per million cached input tokensChecked OpenRouter models API
Price on digitalocean$0.098 per million input tokensChecked OpenRouter models API$1.04 per million input tokensChecked OpenRouter models API
Price on digitalocean$0.196 per million output tokensChecked OpenRouter models API$2.09 per million output tokensChecked OpenRouter models API
Price on fireworks$0.021 per million cached input tokensChecked OpenRouter models APINot checked yet
Price on fireworks$0.105 per million input tokensChecked OpenRouter models APINot checked yet
Price on fireworks$0.210 per million output tokensChecked OpenRouter models APINot checked yet
Price on gmicloud$0.018 per million cached input tokensChecked OpenRouter models API$0.080 per million cached input tokensChecked OpenRouter models API
Price on gmicloud$0.091 per million input tokensChecked OpenRouter models API$0.957 per million input tokensChecked OpenRouter models API
Price on gmicloud$0.182 per million output tokensChecked OpenRouter models API$1.91 per million output tokensChecked OpenRouter models API
Price on mancer$0.075 per million cached input tokensChecked OpenRouter models APINot checked yet
Price on mancer$0.150 per million input tokensChecked OpenRouter models APINot checked yet
Price on mancer$0.500 per million output tokensChecked OpenRouter models APINot checked yet
Price on parasail$0.070 per million cached input tokensChecked OpenRouter models APINot checked yet
Price on parasail$0.140 per million input tokensChecked OpenRouter models APINot checked yet
Price on parasail$0.280 per million output tokensChecked OpenRouter models APINot checked yet
Price on qwen$0.030 per million cached input tokensChecked OpenRouter models API$0.118 per million cached input tokensChecked OpenRouter models API
Price on qwen$0.150 per million input tokensChecked OpenRouter models API$1.42 per million input tokensChecked OpenRouter models API
Price on qwen$0.300 per million output tokensChecked OpenRouter models API$2.83 per million output tokensChecked OpenRouter models API
Price on relace$0.050 per million cached input tokensChecked OpenRouter models API$0.250 per million cached input tokensChecked OpenRouter models API
Price on relace$0.050 per million input tokensChecked OpenRouter models API$0.900 per million input tokensChecked OpenRouter models API
Price on relace$0.450 per million output tokensChecked OpenRouter models API$1.50 per million output tokensChecked OpenRouter models API
Price on siliconflow$0.028 per million cached input tokensChecked OpenRouter models API$0.135 per million cached input tokensChecked OpenRouter models API
Price on siliconflow$0.130 per million input tokensChecked OpenRouter models API$1.00 per million input tokensChecked OpenRouter models API
Price on siliconflow$0.280 per million output tokensChecked OpenRouter models API$1.50 per million output tokensChecked OpenRouter models API
Price on streamlake$0.014 per million cached input tokensChecked OpenRouter models API$0.074 per million cached input tokensChecked OpenRouter models API
Price on streamlake$0.070 per million input tokensChecked OpenRouter models API$0.887 per million input tokensChecked OpenRouter models API
Price on streamlake$0.140 per million output tokensChecked OpenRouter models API$1.77 per million output tokensChecked OpenRouter models API
Price on venice$0.020 per million cached input tokensChecked OpenRouter models API$0.330 per million cached input tokensChecked OpenRouter models API
Price on venice$0.097 per million input tokensChecked OpenRouter models API$1.65 per million input tokensChecked OpenRouter models API
Price on venice$0.193 per million output tokensChecked OpenRouter models API$3.30 per million output tokensChecked OpenRouter models API
Price on wafer$0.024 per million cached input tokensChecked OpenRouter models APINot checked yet
Price on wafer$0.120 per million input tokensChecked OpenRouter models APINot checked yet
Price on nebiusNot checked yet$0.140 per million cached input tokensChecked OpenRouter models API
Price on nebiusNot checked yet$1.75 per million input tokensChecked OpenRouter models API
Price on nebiusNot checked yet$3.50 per million output tokensChecked OpenRouter models API
Price on novitaNot checked yet$0.135 per million cached input tokensChecked OpenRouter models API
Price on novitaNot checked yet$1.60 per million input tokensChecked OpenRouter models API
Price on novitaNot checked yet$3.20 per million output tokensChecked OpenRouter models API
Price on rekaNot checked yet$0.080 per million cached input tokensChecked OpenRouter models API
Price on rekaNot checked yet$0.800 per million input tokensChecked OpenRouter models API
Price on rekaNot checked yet$1.60 per million output tokensChecked OpenRouter models API
Latest versiondeepseek/deepseek-v4-flash-20260423Checked OpenRouter models APIdeepseek/deepseek-v4-pro-20260423Checked OpenRouter models API
Time to first token (ms) on atlas-cloud4,192Checked OpenRouter models API2,190Checked OpenRouter models API
Time to first token (ms) on azure1,270Checked OpenRouter models API1,360Checked OpenRouter models API
Time to first token (ms) on baidu920Checked OpenRouter models API1,112Checked OpenRouter models API
Time to first token (ms) on cloudflare1,278Checked OpenRouter models API1,288Checked OpenRouter models API
Time to first token (ms) on crusoe582Checked OpenRouter models API637Checked OpenRouter models API
Time to first token (ms) on deepinfra758Checked OpenRouter models API1,148Checked OpenRouter models API
Time to first token (ms) on digitalocean852Checked OpenRouter models API606Checked OpenRouter models API
Time to first token (ms) on fireworks6,463Checked OpenRouter models APINot checked yet
Time to first token (ms) on gmicloud1,789Checked OpenRouter models API2,794Checked OpenRouter models API
Time to first token (ms) on mancer1,125Checked OpenRouter models APINot checked yet
Time to first token (ms) on parasail441Checked OpenRouter models APINot checked yet
Time to first token (ms) on qwen1,826Checked OpenRouter models API1,832Checked OpenRouter models API
Time to first token (ms) on relace483Checked OpenRouter models API884Checked OpenRouter models API
Time to first token (ms) on siliconflow3,088Checked OpenRouter models API1,419Checked OpenRouter models API
Time to first token (ms) on streamlake3,968Checked OpenRouter models API1,804Checked OpenRouter models API
Time to first token (ms) on venice995Checked OpenRouter models API1,870Checked OpenRouter models API
Time to first token (ms) on wafer350Checked OpenRouter models APINot checked yet
Output speed (tokens a second) on atlas-cloud33Checked OpenRouter models API36Checked OpenRouter models API
Output speed (tokens a second) on azure89Checked OpenRouter models API86Checked OpenRouter models API
Output speed (tokens a second) on baidu109Checked OpenRouter models API45Checked OpenRouter models API
Output speed (tokens a second) on cloudflare67Checked OpenRouter models API44Checked OpenRouter models API
Output speed (tokens a second) on crusoe74Checked OpenRouter models API163Checked OpenRouter models API
Output speed (tokens a second) on deepinfra52Checked OpenRouter models API67Checked OpenRouter models API
Output speed (tokens a second) on digitalocean14Checked OpenRouter models API31Checked OpenRouter models API
Output speed (tokens a second) on fireworks60Checked OpenRouter models APINot checked yet
Output speed (tokens a second) on gmicloud77Checked OpenRouter models API29Checked OpenRouter models API
Output speed (tokens a second) on mancer48Checked OpenRouter models APINot checked yet
Output speed (tokens a second) on parasail51Checked OpenRouter models APINot checked yet
Output speed (tokens a second) on qwen84Checked OpenRouter models API55Checked OpenRouter models API
Output speed (tokens a second) on relace112Checked OpenRouter models API86Checked OpenRouter models API
Output speed (tokens a second) on siliconflow25Checked OpenRouter models API28Checked OpenRouter models API
Output speed (tokens a second) on streamlake20Checked OpenRouter models API38Checked OpenRouter models API
Output speed (tokens a second) on venice50Checked OpenRouter models API31.5Checked OpenRouter models API
Output speed (tokens a second) on wafer73Checked OpenRouter models APINot checked yet
Time to first token (ms) on nebiusNot checked yet706Checked OpenRouter models API
Time to first token (ms) on novitaNot checked yet2,521Checked OpenRouter models API
Time to first token (ms) on rekaNot checked yet2,304Checked OpenRouter models API
Output speed (tokens a second) on nebiusNot checked yet38Checked OpenRouter models API
Output speed (tokens a second) on novitaNot checked yet53Checked OpenRouter models API
Output speed (tokens a second) on rekaNot checked yet21Checked OpenRouter models API
Tokens served on OpenRouter in a day335.4B (for 10 Nov 2026)Checked OpenRouter model activity (748 of 748 series)90.6B (for 10 Nov 2026)Checked OpenRouter model activity (748 of 748 series)
Tool calls on OpenRouter in a day5.7M (for 10 Nov 2026)Checked OpenRouter model activity (748 of 748 series)861.6K (for 10 Nov 2026)Checked OpenRouter model activity (748 of 748 series)
Artificial Analysis Intelligence Index24.4Checked Artificial Analysis via OpenRouter12.6Checked Artificial Analysis via OpenRouter
Artificial Analysis Coding Index56.2Checked Artificial Analysis via OpenRouter59.4Checked Artificial Analysis via OpenRouter
Artificial Analysis Agentic Index26.3Checked Artificial Analysis via OpenRouter26.3Checked Artificial Analysis via OpenRouter
Design Arena rating (Elo)1,204Checked Design Arena via OpenRouter1,239Checked Design Arena via OpenRouter
Dtbench86.4% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)90.7% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Lmca35.9% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)41.2% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Simplebench46.3% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)Not checked yet
Weirdml45.6% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)48.9% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Gpqa diamondNot checked yet90.9% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Swe bench verifiedNot checked yet77.6% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Frontiermath tiers 1 3 v2 privateNot checked yet45.3% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Simpleqa verifiedNot checked yet47% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Chess puzzlesNot checked yet19% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Cl bench lifeNot checked yet13.5% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
FrontiercodeNot checked yet17.6% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Frontiermath tier 4 v2 privateNot checked yet2.4% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Mystery game puzzlesNot checked yet17% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
ProofbenchNot checked yet16% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Surface evolver benchNot checked yet40% (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)
Otis mock aime 2024 2025Not checked yet96.7% (saturated benchmark: the top models all score near the ceiling) (for 24 Apr 2026)Checked Epoch AI (CC BY 4.0)

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