Enter opens the highlighted result. Esc closes.

DeepSeek V4 Flash 0423 vs GPT-4 Turbo

DeepSeek V4 Flash 0423 leads GPT-4 Turbo on the Artificial Analysis Intelligence Index, 24.4 to 7.0, and DeepSeek V4 Flash 0423 costs 107.1x less per output token ($0.28 vs $30.00 per million). Updated October 21, 2026; 33 benchmarks have a result for both.

Replace DeepSeek V4 Flash 0423 Replace GPT-4 Turbo
DeepSeek V4 Flash 0423DeepSeek
Coding
No data
Overall
No data
Output $/M
$0.28
33
GPT-4 TurboOpenAI
Coding
No data
Overall
No data
Output $/M
$30.00
0
vs boards won of 33 shared

DeepSeek V4 Flash 0423 or GPT-4 Turbo: 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 107.1x cheaper ($0.28 vs $30.00 per million) and a larger context window (1.05M against 128K tokens).

Model ADeepSeek V4 Flash 0423DeepSeekNot benchmarked1 independent benchmarkNo cost per solved taskModel BGPT-4 TurboOpenAINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
33
DeepSeek V4 Flash 0423 only
16
GPT-4 Turbo only
9
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, GPT-4 Turbo not benchmarked.
Widest category
Reasoning, 33.0 points apart on average over 3 shared benchmarks.
Widest single gap
LMArena Text: Chinese: DeepSeek V4 Flash 0423 1463 against GPT-4 Turbo 1242, 36.8 points apart on a 0 to 100 scale.
Output price
DeepSeek V4 Flash 0423 $0.28 against GPT-4 Turbo $30.00 per million output tokens, 107.1x apart.
Context window
DeepSeek V4 Flash 0423 takes 1.05M tokens, GPT-4 Turbo 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 0423BarsGPT-4 TurboTies
Coding30
Intelligence20
Reasoning30
Math20
Knowledge40
General190
All shared boards330
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for DeepSeek V4 Flash 0423 and GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
LMArena WebDev1582Not measuredOnly DeepSeek V4 Flash 0423 measured
AA Coding Index52.021.5DeepSeek V4 Flash 0423
LiveCodeBench (Artificial Analysis run)Not measured29.1%Only GPT-4 Turbo measured
WeirdML45.6%Not measuredOnly DeepSeek V4 Flash 0423 measured
ALE-Bench678.2Not measuredOnly DeepSeek V4 Flash 0423 measured
LMArena Text: coding14571268DeepSeek V4 Flash 0423
LMArena Text: software and IT14531267DeepSeek 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 30 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for DeepSeek V4 Flash 0423 and GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
AA Intelligence Index24.47.0DeepSeek V4 Flash 0423
Epoch Capabilities Index146.1127.3DeepSeek 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 GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
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 GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
Humanity's Last Exam (Artificial Analysis run)Not measured3.1%Only GPT-4 Turbo measured
SimpleBench46.3%Not measuredOnly DeepSeek V4 Flash 0423 measured
LMArena Text: hard prompts14441251DeepSeek V4 Flash 0423
LMArena Text: expert14411223DeepSeek V4 Flash 0423
LMArena Text: hard prompts in English14491266DeepSeek V4 Flash 0423
Kagi LLM Benchmark52.2%Not measuredOnly DeepSeek V4 Flash 0423 measured
Neither model has a result on the other 16 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for DeepSeek V4 Flash 0423 and GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
LMArena Text: math14261272DeepSeek V4 Flash 0423
LMArena Text: mathematical work14321268DeepSeek V4 Flash 0423
Neither model has a result on the other 11 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for DeepSeek V4 Flash 0423 and GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
LegalBench (Vals AI)Not measured80.5%Only GPT-4 Turbo measured
MedQA (Vals AI)Not measured82.0%Only GPT-4 Turbo measured
MMLU Pro (Artificial Analysis run)Not measured69.4%Only GPT-4 Turbo measured
MMLUNot measured81.3%Only GPT-4 Turbo measured
LMArena Text: science14461256DeepSeek V4 Flash 0423
LMArena Text: medicine and healthcare14481239DeepSeek V4 Flash 0423
LMArena Text: legal and government14391265DeepSeek V4 Flash 0423
LMArena Text: business and finance14251222DeepSeek V4 Flash 0423
Neither model has a result on the other 10 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 GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
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 index190
General benchmarks for DeepSeek V4 Flash 0423 and GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
DTBench86.4%61.6%DeepSeek V4 Flash 0423
LMCA35.9%9.8%DeepSeek V4 Flash 0423
LMArena Text14321272DeepSeek V4 Flash 0423
LMArena Text: instruction following14211249DeepSeek V4 Flash 0423
LMArena Text: creative writing14031268DeepSeek V4 Flash 0423
LMArena VisionNot measured1090Only GPT-4 Turbo measured
LMArena Text: English14411291DeepSeek V4 Flash 0423
LMArena Text: non-English14191245DeepSeek V4 Flash 0423
LMArena Text: Chinese14631242DeepSeek V4 Flash 0423
LMArena Text: German14191259DeepSeek V4 Flash 0423
LMArena Text: Japanese13891194DeepSeek V4 Flash 0423
LMArena Text: Korean13831187DeepSeek V4 Flash 0423
LMArena Text: French14391276DeepSeek V4 Flash 0423
LMArena Text: Spanish14361260DeepSeek V4 Flash 0423
LMArena Text: Russian14271259DeepSeek V4 Flash 0423
LMArena Text: Polish14361302DeepSeek V4 Flash 0423
LMArena Text: multi-turn14491267DeepSeek V4 Flash 0423
LMArena Text: longer queries14341254DeepSeek V4 Flash 0423
LMArena Text: writing and language14101279DeepSeek V4 Flash 0423
LMArena Text: entertainment and media14001258DeepSeek V4 Flash 0423
LMArena Vision: EnglishNot measured1097Only GPT-4 Turbo measured
LMArena Vision: ChineseNot measured1045Only GPT-4 Turbo measured
Neither model has a result on the other 24 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 GPT-4 Turbo
BenchmarkDeepSeek V4 Flash 0423GPT-4 TurboLeader
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
GPT-4 Turbo$0.025Fits 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
GPT-4 Turbo$0.590Fits 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
GPT-4 Turbo$2.30Exceeds 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 GPT-4 Turbo
SpecificationDeepSeek V4 Flash 0423OpenAI GPT-4 Turbo
MakerDeepSeekOpenAI
WeightsOpen weightsNo public weights listed
ReleasedApril 24, 2026April 9, 2024
Context window1.05M128K
Input $/Mtok$0.13$10.00
Output $/Mtok$0.28$30.00
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 GPT-4 Turbo 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 107.1x cheaper ($0.28 vs $30.00 per million) and a larger context window (1.05M against 128K tokens).

Which is cheaper, DeepSeek V4 Flash 0423 or GPT-4 Turbo?

DeepSeek V4 Flash 0423 costs $0.13 per million input tokens and $0.28 per million output tokens; GPT-4 Turbo costs $10.00 and $30.00. Cost per solved task is known for neither of them.

Which has the bigger context window, DeepSeek V4 Flash 0423 or GPT-4 Turbo?

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

How many benchmarks is the DeepSeek V4 Flash 0423 vs GPT-4 Turbo comparison based on?

33 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 GPT-4 Turbo's on 0. Where only one model has a result, the page says so instead of naming a winner.

Compare next