Model comparison

DeepSeek V4 Pro vs GPT-5.2 Pro

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 52.3 on the Noometry Index.

Last verified . 6 shared benchmarks.

DeepSeek V4 Pro DeepSeek

54.3

Rank #31 Confirmed

GPT-5.2 Pro OpenAI

52.3

Rank #39 Reported

Summary

  • They share 6 benchmarks with published results for both. DeepSeek V4 Pro scores higher in 1 category and GPT-5.2 Pro in 1 category; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where DeepSeek V4 Pro leads 56.5 to 51.5.
  • The biggest single-benchmark swing is FrontierMath Tier 4: 26.8% for DeepSeek V4 Pro and 46% for GPT-5.2 Pro.
  • DeepSeek V4 Pro is cheaper at $0.66 / $1.98 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
  • 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-5.2 Pro specifications
DeepSeek V4 ProGPT-5.2 Pro
ProviderDeepSeekOpenAI
Noometry Index54.352.3
Released2026-04-242025-12-11
WeightsOpenProprietary
Context window1M400K
Max output393K128K
Input $ / M tokens$0.66$21
Output $ / M tokens$1.98$168
Results tracked488

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Category by category

Coding Not comparable

DeepSeek V4 Pro: 52.4 (#34), GPT-5.2 Pro: —

Coding benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
SWE-bench Verified77.6%—
FrontierCode28.6%—
LMArena WebDev1582—
SciCode51%—
WeirdML66.2%—
LMArena Coding1470—
ALE-Bench1,403—

Agentic & Tool Use Not comparable

DeepSeek V4 Pro: 32.8 (#58), GPT-5.2 Pro: —

Agentic & Tool Use benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
APEX-Agents47.3%—
Vending-Bench 23,285—

Reasoning DeepSeek V4 Pro leads

DeepSeek V4 Pro: 56.5 (#24), GPT-5.2 Pro: 51.5 (#33)

Reasoning benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
ARC-AGI-261.3%54.2%
NYT Connections (extended)91.3%79.3%
ARC-AGI-190.5%90.5%
Epoch Capabilities Index155.31155.4
SimpleBench—57.4%
Kagi LLM Benchmark53.5%—
CritPt18%—
Chess Puzzles47%—
LMArena Hard Prompts1461—
Mystery Game Puzzles43%—
DTBench93.9%—
LMCA45.5%—
Surface Evolver Bench40%—
ForecastBench56.1—

Math Too close to call

DeepSeek V4 Pro: 64.8 (#30), GPT-5.2 Pro: 65.3 (#29)

Math benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
FrontierMath (Tiers 1-3)64.6%74%
FrontierMath Tier 426.8%46%
MathArena Final-Answer Competitions76.6%—
OTIS Mock AIME 2024-202598.6%—
ProofBench50%—
LMArena Math1455—
FrontierMath Tier 4 (v1)—31.3%

Knowledge Not comparable

DeepSeek V4 Pro: 59.5 (#31), GPT-5.2 Pro: —

Knowledge benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
GPQA Diamond91.7%—
SimpleQA Verified52.9%—
Vectara Hallucination Rate8.6%—
LMArena Expert1464—

Multilingual Not comparable

DeepSeek V4 Pro: 54.4 (#45), GPT-5.2 Pro: —

Multilingual benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
LMArena Non-English1439—
LMArena Chinese1486—
LMArena French1472—
LMArena German1458—
LMArena Japanese1445—
LMArena Korean1447—
LMArena Russian1453—
LMArena Spanish1458—

Instruction Following Not comparable

DeepSeek V4 Pro: 76.1 (#47), GPT-5.2 Pro: —

Instruction Following benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
LMArena Instruction Following1448—

Long Context Not comparable

DeepSeek V4 Pro: 45.0 (#51), GPT-5.2 Pro: —

Long Context benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
CL-bench Life13.5%—
LMArena Longer Query1458—

Writing & Preference Not comparable

DeepSeek V4 Pro: 65.5 (#46), GPT-5.2 Pro: —

Writing & Preference benchmarks
BenchmarkDeepSeek V4 ProGPT-5.2 Pro
LMArena Text1451—
LMArena Creative Writing1446—
EQ-Bench Creative Writing1553—
EQ-Bench 41166—
LMArena Multi-Turn1467—

Frequently asked questions

Is DeepSeek V4 Pro better than GPT-5.2 Pro?

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 52.3 on the Noometry Index.

Which is cheaper, DeepSeek V4 Pro or GPT-5.2 Pro?

DeepSeek V4 Pro is cheaper. It lists at $0.66 per million input tokens and $1.98 per million output tokens; GPT-5.2 Pro lists at $21 and $168.

Which has the bigger context window?

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

How many benchmarks do DeepSeek V4 Pro and GPT-5.2 Pro share?

6 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and GPT-5.2 Pro has 8.

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