Model comparison

DeepSeek V4 Pro vs GPT-5

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 50.9 on the Noometry Index.

Last verified . 40 shared benchmarks.

DeepSeek V4 Pro DeepSeek

54.3

Rank #31 Confirmed

GPT-5 OpenAI

50.9

Rank #45 Confirmed

Summary

  • They share 40 benchmarks with published results for both. DeepSeek V4 Pro scores higher in 7 categories and GPT-5 in 2 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in long context, where GPT-5 leads 69.5 to 45.0.
  • The biggest single-benchmark swing is ARC-AGI-2: 61.3% for DeepSeek V4 Pro and 9.9% for GPT-5.
  • DeepSeek V4 Pro is cheaper at $0.66 / $1.98 per million input/output tokens, against $1.25 / $10 for GPT-5.
  • DeepSeek V4 Pro accepts more context: 1M tokens versus 400K.
  • DeepSeek V4 Pro has downloadable open weights; the other is API-only.

Side by side

DeepSeek V4 Pro and GPT-5 specifications
DeepSeek V4 ProGPT-5
ProviderDeepSeekOpenAI
Noometry Index54.350.9
Released2026-04-242025-08-07
WeightsOpenProprietary
Context window1M400K
Max output393K128K
Input $ / M tokens$0.66$1.25
Output $ / M tokens$1.98$10
Results tracked4869

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Category by category

Coding DeepSeek V4 Pro leads

DeepSeek V4 Pro: 52.4 (#34), GPT-5: 50.3 (#47)

Coding benchmarks
BenchmarkDeepSeek V4 ProGPT-5
SWE-bench Verified77.6%73.6%
LMArena WebDev15821418
SciCode51%42.9%
WeirdML66.2%60.7%
LMArena Coding14701436
ALE-Bench1,4031,162
FrontierCode28.6%—
SWE-bench Verified (bash only)—65%
Aider Polyglot—88%
GSO—6.9%
AlgoTune—1.67

Agentic & Tool Use Too close to call

DeepSeek V4 Pro: 32.8 (#58), GPT-5: 33.1 (#56)

Agentic & Tool Use benchmarks
BenchmarkDeepSeek V4 ProGPT-5
Terminal-Bench—49.6%
APEX-Agents47.3%—
GDPval—34.8%
Remote Labor Index—1.7%
DeepResearch Bench—49.6%
BALROG—32.8%
LMArena Search—1133
METR Time Horizons—69.6%
Vending-Bench 23,285—

Reasoning DeepSeek V4 Pro leads

DeepSeek V4 Pro: 56.5 (#24), GPT-5: 38.3 (#64)

Reasoning benchmarks
BenchmarkDeepSeek V4 ProGPT-5
ARC-AGI-261.3%9.9%
Kagi LLM Benchmark53.5%72.7%
ARC-AGI-190.5%65.7%
CritPt18%12.6%
Chess Puzzles47%37%
LMArena Hard Prompts14611416
Mystery Game Puzzles43%23%
DTBench93.9%90.7%
LMCA45.5%40%
Epoch Capabilities Index155.31150
ForecastBench56.161.4
SimpleBench—56.7%
NYT Connections (extended)91.3%—
EnigmaEval—10.5%
EBR-Bench—12.7%
Surface Evolver Bench40%—

Math DeepSeek V4 Pro leads

DeepSeek V4 Pro: 64.8 (#30), GPT-5: 55.0 (#44)

Knowledge DeepSeek V4 Pro leads

DeepSeek V4 Pro: 59.5 (#31), GPT-5: 56.6 (#43)

Knowledge benchmarks
BenchmarkDeepSeek V4 ProGPT-5
GPQA Diamond91.7%86.2%
SimpleQA Verified52.9%50.1%
Vectara Hallucination Rate8.6%14.7%
LMArena Expert14641419
Humanity's Last Exam—25.3%
MMLU-Pro—86.3%
Confabulations—10.3%
GPQA (HELM)—79.2%

Multimodal Not comparable

DeepSeek V4 Pro: —, GPT-5: 46.8 (#13)

Multimodal benchmarks
BenchmarkDeepSeek V4 ProGPT-5
LMArena Vision—1232
GeoBench—81%
VPCT—66%

Multilingual DeepSeek V4 Pro leads

DeepSeek V4 Pro: 54.4 (#45), GPT-5: 51.4 (#110)

Multilingual benchmarks
BenchmarkDeepSeek V4 ProGPT-5
LMArena Non-English14391397
LMArena Chinese14861422
LMArena French14721410
LMArena German14581416
LMArena Japanese14451409
LMArena Korean14471360
LMArena Russian14531406
LMArena Spanish14581399

Instruction Following DeepSeek V4 Pro leads

DeepSeek V4 Pro: 76.1 (#47), GPT-5: 73.8 (#113)

Instruction Following benchmarks
BenchmarkDeepSeek V4 ProGPT-5
LMArena Instruction Following14481388
IFEval—87.5%

Long Context GPT-5 leads

DeepSeek V4 Pro: 45.0 (#51), GPT-5: 69.5 (#2)

Long Context benchmarks
BenchmarkDeepSeek V4 ProGPT-5
LMArena Longer Query14581399
Fiction.LiveBench—97.2%
CL-bench Life13.5%—

Writing & Preference DeepSeek V4 Pro leads

DeepSeek V4 Pro: 65.5 (#46), GPT-5: 63.4 (#65)

Writing & Preference benchmarks
BenchmarkDeepSeek V4 ProGPT-5
LMArena Text14511406
LMArena Creative Writing14461365
EQ-Bench Creative Writing15531627
LMArena Multi-Turn14671426
Short-Story Creative Writing—86%
WildBench—85.7%
EQ-Bench 41166—

Frequently asked questions

Is DeepSeek V4 Pro better than GPT-5?

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 50.9 on the Noometry Index.

Which is cheaper, DeepSeek V4 Pro or GPT-5?

DeepSeek V4 Pro is cheaper. It lists at $0.66 per million input tokens and $1.98 per million output tokens; GPT-5 lists at $1.25 and $10.

Is DeepSeek V4 Pro or GPT-5 better for coding?

DeepSeek V4 Pro scores higher on coding benchmarks: 52.4 versus 50.3 in the Noometry coding category.

Which has the bigger context window?

DeepSeek V4 Pro does, with 1M tokens against 400K.

How many benchmarks do DeepSeek V4 Pro and GPT-5 share?

40 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and GPT-5 has 69.

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