Model comparison

DeepSeek-V2.5 (Sep 2024) vs GPT-5.4 mini

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 37.6 on the Noometry Index.

Last verified . 17 shared benchmarks.

DeepSeek-V2.5 (Sep 2024) DeepSeek

37.6

Rank #200 Confirmed

GPT-5.4 mini OpenAI

45.0

Rank #76 Confirmed

Summary

  • They share 17 benchmarks with published results for both. DeepSeek-V2.5 (Sep 2024) scores higher in 0 categories and GPT-5.4 mini in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5.4 mini leads 51.5 to 34.8.
  • DeepSeek-V2.5 (Sep 2024) has downloadable open weights; the other is API-only.

Side by side

DeepSeek-V2.5 (Sep 2024) and GPT-5.4 mini specifications
DeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
ProviderDeepSeekOpenAI
Noometry Index37.645.0
Released2024-09-062026-03-17
WeightsOpenProprietary
Context window—400K
Max output—128K
Input $ / M tokens—$0.75
Output $ / M tokens—$4.50
Results tracked2246

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Category by category

Coding GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 31.7 (#281), GPT-5.4 mini: 45.2 (#72)

Coding benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Coding13091438
FrontierCode—27%
Aider Polyglot17.8%—
LMArena WebDev—1397
SciCode—49.9%
WeirdML—60.3%
BigCodeBench Instruct48.6%—
BigCodeBench Complete53.2%—
ALE-Bench—1,189
HumanEval+83.5%—
MBPP+74.1%—

Agentic & Tool Use Not comparable

DeepSeek-V2.5 (Sep 2024): —, GPT-5.4 mini: 29.9 (#81)

Agentic & Tool Use benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
DeepResearch Bench—36.3%

Reasoning GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 25.6 (#145), GPT-5.4 mini: 30.4 (#85)

Reasoning benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Hard Prompts12891424
ARC-AGI-2—18.9%
Kagi LLM Benchmark—37.9%
NYT Connections (extended)—61.8%
ARC-AGI-1—63.7%
CritPt—10%
Chess Puzzles—24%
Thematic Generalization—61.7%
Mystery Game Puzzles—11%
DTBench—80%
LMCA—40.8%
Epoch Capabilities Index—148.84
ForecastBench—57

Math GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 35.9 (#177), GPT-5.4 mini: 45.5 (#75)

Math benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Math12881419
FrontierMath (Tiers 1-3)—51.2%
FrontierMath Tier 4—9.8%
OTIS Mock AIME 2024-2025—88.9%
ProofBench—21%
FrontierMath (Feb 2025 set)—28.3%
FrontierMath Tier 4 (v1)—2.1%

Knowledge GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 34.8 (#193), GPT-5.4 mini: 51.5 (#67)

Knowledge benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Expert12661435
GPQA Diamond—86.9%
SimpleQA Verified—29.4%
Vectara Hallucination Rate—5.5%

Multimodal Not comparable

DeepSeek-V2.5 (Sep 2024): —, GPT-5.4 mini: 39.7 (#56)

Multimodal benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Vision—1245

Multilingual GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 42.5 (#193), GPT-5.4 mini: 51.9 (#96)

Multilingual benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Non-English12731405
LMArena Chinese13181446
LMArena French12891440
LMArena German12581409
LMArena Japanese12281374
LMArena Korean12091368
LMArena Russian12891417
LMArena Spanish12481405

Instruction Following GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 67.5 (#194), GPT-5.4 mini: 74.1 (#102)

Instruction Following benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Instruction Following12801405

Long Context GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 39.5 (#174), GPT-5.4 mini: 43.0 (#112)

Long Context benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Longer Query13011407

Writing & Preference GPT-5.4 mini leads

DeepSeek-V2.5 (Sep 2024): 49.8 (#187), GPT-5.4 mini: 64.0 (#58)

Writing & Preference benchmarks
BenchmarkDeepSeek-V2.5 (Sep 2024)GPT-5.4 mini
LMArena Text12941412
LMArena Creative Writing12851370
LMArena Multi-Turn12971429
EQ-Bench Creative Writing—1665

Frequently asked questions

Is DeepSeek-V2.5 (Sep 2024) better than GPT-5.4 mini?

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 37.6 on the Noometry Index.

Is DeepSeek-V2.5 (Sep 2024) or GPT-5.4 mini better for coding?

GPT-5.4 mini scores higher on coding benchmarks: 45.2 versus 31.7 in the Noometry coding category.

How many benchmarks do DeepSeek-V2.5 (Sep 2024) and GPT-5.4 mini share?

17 benchmarks have published results for both models. DeepSeek-V2.5 (Sep 2024) has 22 scored results on Noometry and GPT-5.4 mini has 46.

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