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DeepSeek V4 Flash 0423 vs Mistral Large

DeepSeek V4 Flash 0423 leads Mistral Large on the Artificial Analysis Intelligence Index, 24.4 to 5.8, and DeepSeek V4 Flash 0423 costs 21.4x less per output token ($0.28 vs $6.00 per million). Updated October 21, 2026; 31 benchmarks have a result for both.

Replace DeepSeek V4 Flash 0423 Replace Mistral Large
DeepSeek V4 Flash 0423DeepSeek
Coding
No data
Overall
No data
Output $/M
$0.28
31
Mistral LargeMistral AI
Coding
No data
Overall
No data
Output $/M
$6.00
0
vs boards won of 31 shared

DeepSeek V4 Flash 0423 or Mistral Large: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick DeepSeek V4 Flash 0423 for output tokens 21.4x cheaper ($0.28 vs $6.00 per million) and a larger context window (1.05M against 128K tokens).

Model ADeepSeek V4 Flash 0423DeepSeekNot benchmarked1 independent benchmarkNo cost per solved taskModel BMistral LargeMistral AINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
31
DeepSeek V4 Flash 0423 only
18
Mistral Large only
13
Like-for-like categories
6 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
DeepSeek V4 Flash 0423 not benchmarked, Mistral Large not benchmarked.
Widest category
Reasoning, 33.4 points apart on average over 3 shared benchmarks.
Widest single gap
LMArena Text: Polish: DeepSeek V4 Flash 0423 1436 against Mistral Large 1157, 46.4 points apart on a 0 to 100 scale.
Output price
DeepSeek V4 Flash 0423 $0.28 against Mistral Large $6.00 per million output tokens, 21.4x apart.
Context window
DeepSeek V4 Flash 0423 takes 1.05M tokens, Mistral Large 128K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryDeepSeek V4 Flash 0423BarsMistral LargeTies
Coding20
Intelligence20
Reasoning30
Math20
Knowledge40
General180
All shared boards310
CodingLike-for-likeSix of these boards feed the Vibe Coding Index20
Coding benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
LMArena WebDev1582Not measuredOnly DeepSeek V4 Flash 0423 measured
AA Coding Index52.0Not measuredOnly DeepSeek V4 Flash 0423 measured
LiveCodeBench (Vals AI)Not measured37.1%Only Mistral Large measured
LiveCodeBench (Artificial Analysis run)Not measured17.8%Only Mistral Large measured
WeirdML45.6%Not measuredOnly DeepSeek V4 Flash 0423 measured
ALE-Bench678.2Not measuredOnly DeepSeek V4 Flash 0423 measured
LMArena Text: coding14571275DeepSeek V4 Flash 0423
LMArena Text: software and IT14531274DeepSeek V4 Flash 0423
LMArena WebDev: React1585Not measuredOnly DeepSeek V4 Flash 0423 measured
LMArena WebDev: HTML1558Not measuredOnly DeepSeek V4 Flash 0423 measured
Neither model has a result on the other 29 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
AA Intelligence Index24.45.8DeepSeek V4 Flash 0423
Epoch Capabilities Index146.1122.1DeepSeek V4 Flash 0423
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Agentic work benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
AA Agentic Index26.3Not measuredOnly DeepSeek V4 Flash 0423 measured
Neither model has a result on the other 40 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index30
Reasoning benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
GPQA DiamondNot measured47.7%Only Mistral Large measured
GPQA Diamond (Artificial Analysis run)Not measured35.1%Only Mistral Large measured
Humanity's Last Exam (Artificial Analysis run)Not measured3.5%Only Mistral Large measured
SimpleBench46.3%Not measuredOnly DeepSeek V4 Flash 0423 measured
LMArena Text: hard prompts14441257DeepSeek V4 Flash 0423
LMArena Text: expert14411208DeepSeek V4 Flash 0423
LMArena Text: hard prompts in English14491268DeepSeek V4 Flash 0423
Kagi LLM Benchmark52.2%Not measuredOnly DeepSeek V4 Flash 0423 measured
Neither model has a result on the other 14 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
AIMENot measured9.2%Only Mistral Large measured
MATH 500 (Vals AI)Not measured74.4%Only Mistral Large measured
MGSM (Vals AI)Not measured87.2%Only Mistral Large measured
LMArena Text: math14261261DeepSeek V4 Flash 0423
LMArena Text: mathematical work14321257DeepSeek V4 Flash 0423
Neither model has a result on the other 8 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
MMLU ProNot measured69.7%Only Mistral Large measured
TaxEval (Vals AI)Not measured63.8%Only Mistral Large measured
MedQA (Vals AI)Not measured76.2%Only Mistral Large measured
MMLU Pro (Artificial Analysis run)Not measured51.5%Only Mistral Large measured
MMLUNot measured68.8%Only Mistral Large measured
LMArena Text: science14461260DeepSeek V4 Flash 0423
LMArena Text: medicine and healthcare14481255DeepSeek V4 Flash 0423
LMArena Text: legal and government14391275DeepSeek V4 Flash 0423
LMArena Text: business and finance14251238DeepSeek V4 Flash 0423
Neither model has a result on the other 9 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
Design Arena: websites1208Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: UI components1165Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: game dev1197Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: data viz1127Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: 3D1189Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: all code categories1205Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: SVG1155Not measuredOnly DeepSeek V4 Flash 0423 measured
Design Arena: ASCII art1109Not measuredOnly DeepSeek V4 Flash 0423 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index180
General benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
DTBench86.4%60.8%DeepSeek V4 Flash 0423
LMCA35.9%Not measuredOnly DeepSeek V4 Flash 0423 measured
LMArena Text14321265DeepSeek V4 Flash 0423
LMArena Text: instruction following14211249DeepSeek V4 Flash 0423
LMArena Text: creative writing14031242DeepSeek V4 Flash 0423
LMArena Text: English14411284DeepSeek V4 Flash 0423
LMArena Text: non-English14191235DeepSeek V4 Flash 0423
LMArena Text: Chinese14631239DeepSeek V4 Flash 0423
LMArena Text: German14191242DeepSeek V4 Flash 0423
LMArena Text: Japanese13891170DeepSeek V4 Flash 0423
LMArena Text: Korean13831202DeepSeek V4 Flash 0423
LMArena Text: French14391325DeepSeek V4 Flash 0423
LMArena Text: Spanish14361268DeepSeek V4 Flash 0423
LMArena Text: Russian14271252DeepSeek V4 Flash 0423
LMArena Text: Polish14361157DeepSeek V4 Flash 0423
LMArena Text: multi-turn14491260DeepSeek V4 Flash 0423
LMArena Text: longer queries14341261DeepSeek V4 Flash 0423
LMArena Text: writing and language14101261DeepSeek V4 Flash 0423
LMArena Text: entertainment and media14001230DeepSeek V4 Flash 0423
Neither model has a result on the other 27 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for DeepSeek V4 Flash 0423 and Mistral Large
BenchmarkDeepSeek V4 Flash 0423Mistral LargeLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

DeepSeek V4 Flash 0423$0.0003Fits in one request
Mistral Large$0.0050Fits in one request

DeepSeek V4 Flash 0423 costs less

Repository review

50K input + 3K output tokens

DeepSeek V4 Flash 0423$0.0073Fits in one request
Mistral Large$0.118Fits in one request

DeepSeek V4 Flash 0423 costs less

Agent loop

200K input + 10K output tokens

DeepSeek V4 Flash 0423$0.029Fits in one request
Mistral Large$0.460Exceeds the context window

DeepSeek V4 Flash 0423 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of DeepSeek V4 Flash 0423 and Mistral Large
SpecificationDeepSeek V4 Flash 0423Mistral Large
MakerDeepSeekMistral AI
WeightsOpen weightsNo public weights listed
ReleasedApril 24, 2026February 26, 2024
Context window1.05M128K
Input $/Mtok$0.13$2.00
Output $/Mtok$0.28$6.00
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it10
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is DeepSeek V4 Flash 0423 better than Mistral Large for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick DeepSeek V4 Flash 0423 for output tokens 21.4x cheaper ($0.28 vs $6.00 per million) and a larger context window (1.05M against 128K tokens).

Which is cheaper, DeepSeek V4 Flash 0423 or Mistral Large?

DeepSeek V4 Flash 0423 costs $0.13 per million input tokens and $0.28 per million output tokens; Mistral Large costs $2.00 and $6.00. Cost per solved task is known for neither of them.

Which has the bigger context window, DeepSeek V4 Flash 0423 or Mistral Large?

DeepSeek V4 Flash 0423, with 1.05M tokens against 128K.

How many benchmarks is the DeepSeek V4 Flash 0423 vs Mistral Large comparison based on?

31 benchmarks have a result for both models as of October 21, 2026. DeepSeek V4 Flash 0423's coding index rests on 1 independent benchmark and Mistral Large's on 0. Where only one model has a result, the page says so instead of naming a winner.

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