Side-by-side comparison · models

DeepSeek V4.1 Flash vs DeepSeek V4 Pro (Thinking)

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

Models

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture.

116 checked values

View record

Models

DeepSeek V4 Pro (Thinking)

Flagship DeepSeek model for coding, reasoning, and agentic work.

0 checked values

View record

Checked facts

Line by line

DeepSeek V4.1 Flash vs DeepSeek V4 Pro (Thinking), compared on checked facts
Measure	DeepSeek V4.1 Flash	DeepSeek V4 Pro (Thinking)
Input price	$0.051 per million tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Output price	$0.567 per million tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on atlas-cloud	$0.013 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on atlas-cloud	$0.135 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on atlas-cloud	$0.540 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on baidu	$0.0028 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on baidu	$0.140 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on baidu	$0.559 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on baseten	$0.0070 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on baseten	$0.300 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on baseten	$1.20 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on cohere	$0.0030 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on cohere	$0.195 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on cohere	$0.660 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on coreweave	$0.0020 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on coreweave	$0.130 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on coreweave	$0.650 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on crusoe	$0.0070 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on crusoe	$0.290 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on crusoe	$1.20 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on decart	$0.018 per million cached input tokensChecked 31 Oct 2026OpenRouter models API	Not checked yet
Price on decart	$0.090 per million input tokensChecked 31 Oct 2026OpenRouter models API	Not checked yet
Price on decart	$0.180 per million output tokensChecked 31 Oct 2026OpenRouter models API	Not checked yet
Price on deepinfra	$0.0034 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on deepinfra	$0.112 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on deepinfra	$0.336 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on digitalocean	$0.0060 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on digitalocean	$0.225 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on digitalocean	$0.900 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on fireworks	$0.0042 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on fireworks	$0.210 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on fireworks	$0.840 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on gmicloud	$0.0036 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on gmicloud	$0.180 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on gmicloud	$0.720 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on google-vertex	$0.030 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on google-vertex	$0.300 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on google-vertex	$1.20 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on inference-net	$0.0080 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on inference-net	$0.103 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on inference-net	$0.600 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on makora	$0.0058 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on makora	$0.260 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on makora	$1.17 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on mancer	$0.050 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on mancer	$0.212 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on mancer	$0.750 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on modal	$0.030 per million cached input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on modal	$0.300 per million input tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on modal	$1.20 per million output tokensChecked 11 Nov 2026OpenRouter models API	Not checked yet
Price on modelrun	$0.0060 per million cached input tokensChecked 28 Oct 2026OpenRouter models API	Not checked yet
Price on modelrun	$0.170 per million input tokensChecked 28 Oct 2026OpenRouter models API	Not checked yet
Latest version	deepseek/deepseek-v4.1-flash-20260910Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms)	770Checked 11 Nov 2026Artificial Analysis	Not checked yet
Time to first token (ms) on atlas-cloud	699Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on baidu	1,121Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on baseten	718Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on cohere	344Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on coreweave	588Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on crusoe	720Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on decart	773Checked 30 Oct 2026OpenRouter models API	Not checked yet
Time to first token (ms) on deepinfra	2,287Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on digitalocean	694Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on fireworks	884Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on gmicloud	1,956Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on google-vertex	876Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on inference-net	260Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on makora	731Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on mancer	800Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on modal	400Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on modelrun	347Checked 28 Oct 2026OpenRouter models API	Not checked yet
Time to first token (ms) on morph	856Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on nebius	675Checked 9 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on novita	1,169Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on open-inference	935Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on parasail	521Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on phala	1,086Checked 10 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on prime-intellect	1,143Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on qwen	645Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on reka	382Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on relace	658Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on sail-research	498Checked 30 Oct 2026OpenRouter models API	Not checked yet
Time to first token (ms) on siliconflow	1,704Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on streamlake	1,699Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on together	273Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on venice	839Checked 11 Nov 2026OpenRouter models API	Not checked yet
Time to first token (ms) on wafer	292Checked 11 Nov 2026OpenRouter models API	Not checked yet
Output speed (tokens a second)	223.9Checked 11 Nov 2026Artificial Analysis	Not checked yet
Output speed (tokens a second) on atlas-cloud	98Checked 11 Nov 2026OpenRouter models API	Not checked yet
Output speed (tokens a second) on baidu	58Checked 11 Nov 2026OpenRouter models API	Not checked yet
Output speed (tokens a second) on baseten	187.5Checked 11 Nov 2026OpenRouter models API	Not checked yet
Output speed (tokens a second) on cohere	126Checked 11 Nov 2026OpenRouter models API	Not checked yet
Output speed (tokens a second) on coreweave	135Checked 11 Nov 2026OpenRouter models API	Not checked yet
Tokens served on OpenRouter in a day	2.3T (for 10 Nov 2026)Checked 11 Nov 2026OpenRouter model activity (748 of 748 series)	Not checked yet
Tool calls on OpenRouter in a day	20.1M (for 10 Nov 2026)Checked 11 Nov 2026OpenRouter model activity (748 of 748 series)	Not checked yet
Artificial Analysis Intelligence Index	24.7Checked 27 Oct 2026Artificial Analysis via OpenRouter	Not checked yet
LMArena text rating (Elo)	1,463Checked 11 Nov 2026LMArena (CC-BY-4.0), published 2026-11-09	Not checked yet
LMArena web development rating (Elo)	1,664Checked 11 Nov 2026LMArena (CC-BY-4.0), published 2026-11-09	Not checked yet
LMArena vision rating (Elo)	1,279Checked 11 Nov 2026LMArena (CC-BY-4.0), published 2026-11-09	Not checked yet
Gpqa diamond	89.8% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Frontiermath tiers 1 3 v2 private	67.4% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Simpleqa verified	42.9% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Arc agi 2	72.9% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Apex agents	39.5% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Arc agi	94.5% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Chess puzzles	48% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Dtbench	89.9% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Frontiercode	43.9% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Frontiermath tier 4 v2 private	26.8% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Furniture assembly	34.2% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Lmca	47% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Mystery game puzzles	43% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Proofbench	54% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Surface evolver bench	46.3% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Weirdml v3	11.6% (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet
Otis mock aime 2024 2025	98.3% (saturated benchmark: the top models all score near the ceiling) (for 9 Sept 2026)Checked 24 Oct 2026Epoch AI (CC BY 4.0)	Not checked yet

A line appears only when at least one record has a value we confirmed from a source. Values we have not confirmed are left out, never guessed. Records of different types share fewer lines.

Add a third

Compare with one more record

How this works

Share it, or build your own

This page works for any two or three records in the directory, of any type. The link stays the same whichever order you name them in, so you can share it as it is. Change the records in the address, for example /directories/vs/claude-code-vs-cursor, or start from our editorial comparisons.