Model comparison
GPT-5.2 Pro vs GPT-5.4 Pro
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 52.2 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 0 categories and GPT-5.4 Pro in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 Pro leads 71.0 to 51.8.
- The biggest single-benchmark swing is ARC-AGI-2: 54.2% for GPT-5.2 Pro and 83.3% for GPT-5.4 Pro.
- GPT-5.2 Pro is cheaper at $21 / $168 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
- GPT-5.4 Pro accepts more context: 1.05M tokens versus 400K.
Side by side
| GPT-5.2 Pro | GPT-5.4 Pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 52.2 | 58.8 |
| Released | 2025-12-11 | 2026-03-05 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | 1.05M |
| Max output | 128K | 128K |
| Input $ / M tokens | $21 | $30 |
| Output $ / M tokens | $168 | $180 |
| Results tracked | 8 | 16 |
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Category by category
Coding Not comparable
GPT-5.2 Pro: —, GPT-5.4 Pro: 42.6 (#89)
| Benchmark | GPT-5.2 Pro | GPT-5.4 Pro |
|---|---|---|
| WeirdML | — | 57.4% |
Reasoning GPT-5.4 Pro leads
GPT-5.2 Pro: 51.8 (#31), GPT-5.4 Pro: 71.0 (#10)
| Benchmark | GPT-5.2 Pro | GPT-5.4 Pro |
|---|---|---|
| ARC-AGI-2 | 54.2% | 83.3% |
| SimpleBench | 57.4% | 74.1% |
| ARC-AGI-1 | 90.5% | 94.5% |
| Epoch Capabilities Index | 155.41 | 159.12 |
| NYT Connections (extended) | 79.3% | — |
| CritPt | — | 30% |
| Chess Puzzles | — | 58.6% |
| EnigmaEval | — | 23.8% |
Math GPT-5.4 Pro leads
GPT-5.2 Pro: 64.8 (#23), GPT-5.4 Pro: 72.0 (#17)
| Benchmark | GPT-5.2 Pro | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | 82.5% |
| FrontierMath Tier 4 | 46% | 58.5% |
| FrontierMath Tier 4 (v1) | 31.3% | 37.5% |
| FrontierMath (Feb 2025 set) | — | 50% |
Knowledge Not comparable
GPT-5.2 Pro: —, GPT-5.4 Pro: 68.3 (#6)
| Benchmark | GPT-5.2 Pro | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | — | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| Vectara Hallucination Rate | — | 8.3% |
Frequently asked questions
Is GPT-5.2 Pro better than GPT-5.4 Pro?
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 52.2 on the Noometry Index.
Which is cheaper, GPT-5.2 Pro or GPT-5.4 Pro?
GPT-5.2 Pro is cheaper. It lists at $21 per million input tokens and $168 per million output tokens; GPT-5.4 Pro lists at $30 and $180.
Which has the bigger context window?
GPT-5.4 Pro does, with 1.05M tokens against 400K.
How many benchmarks do GPT-5.2 Pro and GPT-5.4 Pro share?
7 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and GPT-5.4 Pro has 16.