Model comparison
Claude Instant vs GPT-5.2 Pro
GPT-5.2 Pro has enough public results to be ranked (#39); Claude Instant does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Claude Instant scores higher in 0 categories and GPT-5.2 Pro in 1 category; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.2 Pro leads 51.5 to 19.6.
Side by side
| Claude Instant | GPT-5.2 Pro | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 29.5 | 52.3 |
| Released | 2023-08-09 | 2025-12-11 |
| Weights | Proprietary | Proprietary |
| Context window | — | 400K |
| Max output | — | 128K |
| Input $ / M tokens | — | $21 |
| Output $ / M tokens | — | $168 |
| Results tracked | 7 | 8 |
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Category by category
Coding Not comparable
Claude Instant: —, GPT-5.2 Pro: —
| Benchmark | Claude Instant | GPT-5.2 Pro |
|---|---|---|
| HumanEval+ | 50.6% | — |
Reasoning GPT-5.2 Pro leads
Claude Instant: 19.6, GPT-5.2 Pro: 51.5 (#33)
| Benchmark | Claude Instant | GPT-5.2 Pro |
|---|---|---|
| Epoch Capabilities Index | 120.28 | 155.4 |
| ARC-AGI-2 | — | 54.2% |
| SimpleBench | — | 57.4% |
| NYT Connections (extended) | — | 79.3% |
| ARC-AGI-1 | — | 90.5% |
| DTBench | 45.8% | — |
Math Not comparable
Claude Instant: —, GPT-5.2 Pro: 65.3 (#29)
| Benchmark | Claude Instant | GPT-5.2 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 74% |
| FrontierMath Tier 4 | — | 46% |
| FrontierMath Tier 4 (v1) | — | 31.3% |
| GSM8K | 86.7% | — |
Knowledge Not comparable
Claude Instant: —, GPT-5.2 Pro: —
| Benchmark | Claude Instant | GPT-5.2 Pro |
|---|---|---|
| ARC (AI2) Challenge | 86.3% | — |
| MMLU | 73.4% | — |
| TriviaQA | 78.9% | — |
Frequently asked questions
Is Claude Instant better than GPT-5.2 Pro?
GPT-5.2 Pro has enough public results to be ranked (#39); Claude Instant does not yet, so treat this comparison as directional.
How many benchmarks do Claude Instant and GPT-5.2 Pro share?
1 benchmark has published results for both models. Claude Instant has 7 scored results on Noometry and GPT-5.2 Pro has 8.