Model comparison
GPT-5.2 Pro vs GPT-5 Pro
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 46.2 on the Noometry Index.
Last verified . 7 shared benchmarks.
Summary
- They share 7 benchmarks with published results for both. GPT-5.2 Pro scores higher in 2 categories and GPT-5 Pro in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.2 Pro leads 64.8 to 48.0.
- The biggest single-benchmark swing is ARC-AGI-2: 54.2% for GPT-5.2 Pro and 18.3% for GPT-5 Pro.
- GPT-5 Pro is cheaper at $15 / $120 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
Side by side
| GPT-5.2 Pro | GPT-5 Pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 52.2 | 46.2 |
| Released | 2025-12-11 | 2025-10-06 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | 400K |
| Max output | 128K | 272K |
| Input $ / M tokens | $21 | $15 |
| Output $ / M tokens | $168 | $120 |
| Results tracked | 8 | 12 |
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Category by category
Coding Not comparable
GPT-5.2 Pro: —, GPT-5 Pro: 43.4 (#77)
Reasoning GPT-5.2 Pro leads
GPT-5.2 Pro: 51.8 (#31), GPT-5 Pro: 39.2 (#52)
| Benchmark | GPT-5.2 Pro | GPT-5 Pro |
|---|---|---|
| ARC-AGI-2 | 54.2% | 18.3% |
| SimpleBench | 57.4% | 61.6% |
| ARC-AGI-1 | 90.5% | 70.2% |
| Epoch Capabilities Index | 155.41 | 150.26 |
| Kagi LLM Benchmark | — | 76.8% |
| NYT Connections (extended) | 79.3% | — |
| EnigmaEval | — | 18.8% |
Math GPT-5.2 Pro leads
GPT-5.2 Pro: 64.8 (#23), GPT-5 Pro: 48.0 (#53)
| Benchmark | GPT-5.2 Pro | GPT-5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | 55.8% |
| FrontierMath Tier 4 | 46% | 19.5% |
| FrontierMath Tier 4 (v1) | 31.3% | 14.6% |
Knowledge Not comparable
GPT-5.2 Pro: —, GPT-5 Pro: 56.2 (#39)
| Benchmark | GPT-5.2 Pro | GPT-5 Pro |
|---|---|---|
| Humanity's Last Exam | — | 31.6% |
Frequently asked questions
Is GPT-5.2 Pro better than GPT-5 Pro?
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 46.2 on the Noometry Index.
Which is cheaper, GPT-5.2 Pro or GPT-5 Pro?
GPT-5 Pro is cheaper. It lists at $15 per million input tokens and $120 per million output tokens; GPT-5.2 Pro lists at $21 and $168.
Which has the bigger context window?
Both accept 400K tokens.
How many benchmarks do GPT-5.2 Pro and GPT-5 Pro share?
7 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and GPT-5 Pro has 12.