Model comparison

DeepSeek-R1 vs GPT-5.2 Pro

GPT-5.2 Pro is the stronger model overall, scoring 52.3 to 42.3 on the Noometry Index. DeepSeek-R1 costs 63× less per token, which makes it the better buy when GPT-5.2 Pro's lead doesn't matter for your workload.

Last verified . 4 shared benchmarks.

DeepSeek-R1 DeepSeek

42.3

Rank #115 Confirmed

GPT-5.2 Pro OpenAI

52.3

Rank #39 Reported

Summary

  • They share 4 benchmarks with published results for both. DeepSeek-R1 scores higher in 0 categories and GPT-5.2 Pro in 2 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5.2 Pro leads 51.5 to 18.6.
  • The biggest single-benchmark swing is ARC-AGI-1: 21.2% for DeepSeek-R1 and 90.5% for GPT-5.2 Pro.
  • DeepSeek-R1 is cheaper at $0.50 / $2.15 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
  • GPT-5.2 Pro accepts more context: 400K tokens versus 164K.

Side by side

DeepSeek-R1 and GPT-5.2 Pro specifications
DeepSeek-R1GPT-5.2 Pro
ProviderDeepSeekOpenAI
Noometry Index42.352.3
Released2025-01-202025-12-11
WeightsProprietaryProprietary
Context window164K400K
Max output64K128K
Input $ / M tokens$0.50$21
Output $ / M tokens$2.15$168
Results tracked528

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Category by category

Coding Not comparable

DeepSeek-R1: 46.3 (#68), GPT-5.2 Pro: —

Coding benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
Aider Polyglot71.4%—
SciCode35.7%—
WeirdML41.6%—
LiveBench Coding66.7%—
LMArena Coding1427—
ALE-Bench804.12—
AlgoTune1.7—

Agentic & Tool Use Not comparable

DeepSeek-R1: 30.7 (#75), GPT-5.2 Pro: —

Agentic & Tool Use benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
DeepResearch Bench35.1%—
BALROG34.9%—
METR Time Horizons53.8%—

Reasoning GPT-5.2 Pro leads

DeepSeek-R1: 18.6 (#278), GPT-5.2 Pro: 51.5 (#33)

Reasoning benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
ARC-AGI-21.3%54.2%
SimpleBench40.8%57.4%
ARC-AGI-121.2%90.5%
Epoch Capabilities Index141.29155.4
Kagi LLM Benchmark69.4%—
NYT Connections (extended)—79.3%
CritPt1.1%—
LiveBench Reasoning83.2%—
LMArena Hard Prompts1416—
LiveBench Data Analysis69.8%—
ForecastBench60—
LiveBench71.6%—

Math GPT-5.2 Pro leads

DeepSeek-R1: 43.8 (#79), GPT-5.2 Pro: 65.3 (#29)

Math benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
FrontierMath (Tiers 1-3)—74%
FrontierMath Tier 4—46%
OTIS Mock AIME 2024-202566.4%—
Omni-MATH42.4%—
LiveBench Math80.7%—
LMArena Math1400—
MATH Level 596.6%—
FrontierMath Tier 4 (v1)—31.3%

Knowledge Not comparable

DeepSeek-R1: 44.5 (#87), GPT-5.2 Pro: —

Knowledge benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
GPQA Diamond76.3%—
MMLU-Pro79.3%—
Confabulations12.7%—
Vectara Hallucination Rate11.3%—
GPQA (HELM)66.6%—
LMArena Expert1394—

Multilingual Not comparable

DeepSeek-R1: 52.4 (#85), GPT-5.2 Pro: —

Multilingual benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
LMArena Non-English1412—
LMArena Chinese1442—
LMArena French1417—
LMArena German1404—
LMArena Japanese1391—
LMArena Korean1360—
LMArena Russian1423—
LMArena Spanish1411—

Instruction Following Not comparable

DeepSeek-R1: 72.0 (#143), GPT-5.2 Pro: —

Instruction Following benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
LiveBench Instruction Following80.5%—
IFEval78.4%—
LMArena Instruction Following1382—

Long Context Not comparable

DeepSeek-R1: 45.4 (#36), GPT-5.2 Pro: —

Long Context benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
Fiction.LiveBench75%—
LMArena Longer Query1391—

Writing & Preference Not comparable

DeepSeek-R1: 61.4 (#88), GPT-5.2 Pro: —

Writing & Preference benchmarks
BenchmarkDeepSeek-R1GPT-5.2 Pro
LMArena Text1428—
LMArena Creative Writing1405—
Short-Story Creative Writing83%—
EQ-Bench Creative Writing1500—
WildBench82.8%—
LMArena Multi-Turn1405—
LiveBench Language48.5%—

Frequently asked questions

Is DeepSeek-R1 better than GPT-5.2 Pro?

GPT-5.2 Pro is the stronger model overall, scoring 52.3 to 42.3 on the Noometry Index. DeepSeek-R1 costs 63× less per token, which makes it the better buy when GPT-5.2 Pro's lead doesn't matter for your workload.

Which is cheaper, DeepSeek-R1 or GPT-5.2 Pro?

DeepSeek-R1 is cheaper. It lists at $0.50 per million input tokens and $2.15 per million output tokens; GPT-5.2 Pro lists at $21 and $168.

Which has the bigger context window?

GPT-5.2 Pro does, with 400K tokens against 164K.

How many benchmarks do DeepSeek-R1 and GPT-5.2 Pro share?

4 benchmarks have published results for both models. DeepSeek-R1 has 52 scored results on Noometry and GPT-5.2 Pro has 8.

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