Model comparison
DeepSeek-V3.2-Exp vs GPT-5.2 Pro
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 44.9 on the Noometry Index. DeepSeek-V3.2-Exp costs 199× less per token, which makes it the better buy when GPT-5.2 Pro's lead doesn't matter for your workload.
Last verified . 5 shared benchmarks.
DeepSeekSummary
- They share 5 benchmarks with published results for both. DeepSeek-V3.2-Exp 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 51.8 to 22.0.
- The biggest single-benchmark swing is ARC-AGI-2: 4% for DeepSeek-V3.2-Exp and 54.2% for GPT-5.2 Pro.
- DeepSeek-V3.2-Exp is cheaper at $0.26 / $0.38 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
- GPT-5.2 Pro accepts more context: 400K tokens versus 164K.
- DeepSeek-V3.2-Exp has downloadable open weights; the other is API-only.
Side by side
| DeepSeek-V3.2-Exp | GPT-5.2 Pro | |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Noometry Index | 44.9 | 52.2 |
| Released | 2025-09-29 | 2025-12-11 |
| Weights | Open | Proprietary |
| Context window | 164K | 400K |
| Max output | 66K | 128K |
| Input $ / M tokens | $0.26 | $21 |
| Output $ / M tokens | $0.38 | $168 |
| Results tracked | 48 | 8 |
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Category by category
Coding Not comparable
DeepSeek-V3.2-Exp: 46.4 (#61), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| SWE-bench Verified (bash only) | 70% | — |
| Aider Polyglot | 74.2% | — |
| LMArena WebDev | 1362 | — |
| SWE-bench Multilingual | 59% | — |
| SciCode | 38.9% | — |
| WeirdML | 39.5% | — |
| LMArena Coding | 1454 | — |
Agentic & Tool Use Not comparable
DeepSeek-V3.2-Exp: 37.9 (#31), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| Terminal-Bench | 39.6% | — |
| Berkeley Function Calling Leaderboard | 56.7% | — |
| TheAgentCompany | 42.9% | — |
| Vending-Bench 2 | 1,034 | — |
Reasoning GPT-5.2 Pro leads
DeepSeek-V3.2-Exp: 22.0 (#185), GPT-5.2 Pro: 51.8 (#31)
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| ARC-AGI-2 | 4% | 54.2% |
| NYT Connections (extended) | 36.7% | 79.3% |
| ARC-AGI-1 | 57% | 90.5% |
| Epoch Capabilities Index | 146.28 | 155.41 |
| SimpleBench | — | 57.4% |
| Kagi LLM Benchmark | 52.2% | — |
| CritPt | 2.9% | — |
| Chess Puzzles | 14% | — |
| Thematic Generalization | 65% | — |
| LMArena Hard Prompts | 1433 | — |
| DTBench | 87.7% | — |
| LMCA | 29.1% | — |
Math GPT-5.2 Pro leads
DeepSeek-V3.2-Exp: 40.8 (#75), GPT-5.2 Pro: 64.8 (#23)
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| FrontierMath Tier 4 (v1) | 2.1% | 31.3% |
| FrontierMath (Tiers 1-3) | — | 74% |
| FrontierMath Tier 4 | — | 46% |
| MathArena Final-Answer Competitions | 57.7% | — |
| OTIS Mock AIME 2024-2025 | 87.8% | — |
| ProofBench | 8% | — |
| LMArena Math | 1435 | — |
| FrontierMath (Feb 2025 set) | 22.1% | — |
Knowledge Not comparable
DeepSeek-V3.2-Exp: 51.6 (#61), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| GPQA Diamond | 83.4% | — |
| Vectara Hallucination Rate | 5.3% | — |
| LMArena Expert | 1436 | — |
Multilingual Not comparable
DeepSeek-V3.2-Exp: 52.4 (#85), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| LMArena Non-English | 1409 | — |
| LMArena Chinese | 1461 | — |
| LMArena French | 1435 | — |
| LMArena German | 1440 | — |
| LMArena Japanese | 1377 | — |
| LMArena Korean | 1372 | — |
| LMArena Russian | 1423 | — |
| LMArena Spanish | 1441 | — |
Instruction Following Not comparable
DeepSeek-V3.2-Exp: 74.7 (#89), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| LMArena Instruction Following | 1413 | — |
Long Context Not comparable
DeepSeek-V3.2-Exp: 47.6 (#15), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| Fiction.LiveBench | 83.3% | — |
| CL-bench | 13.2% | — |
| CL-bench Life | 9.5% | — |
| LMArena Longer Query | 1428 | — |
Writing & Preference Not comparable
DeepSeek-V3.2-Exp: 62.5 (#73), GPT-5.2 Pro: —
| Benchmark | DeepSeek-V3.2-Exp | GPT-5.2 Pro |
|---|---|---|
| LMArena Text | 1425 | — |
| LMArena Creative Writing | 1403 | — |
| EQ-Bench Creative Writing | 1515 | — |
| LMArena Multi-Turn | 1427 | — |
Frequently asked questions
Is DeepSeek-V3.2-Exp better than GPT-5.2 Pro?
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 44.9 on the Noometry Index. DeepSeek-V3.2-Exp costs 199× 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-V3.2-Exp or GPT-5.2 Pro?
DeepSeek-V3.2-Exp is cheaper. It lists at $0.26 per million input tokens and $0.38 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-V3.2-Exp and GPT-5.2 Pro share?
5 benchmarks have published results for both models. DeepSeek-V3.2-Exp has 48 scored results on Noometry and GPT-5.2 Pro has 8.