Model comparison
Claude Instant vs GPT-5.4 Pro
GPT-5.4 Pro has enough public results to be ranked (#16); 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-5.4 Pro in 1 category; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 Pro leads 71.0 to 18.8.
Side by side
| Claude Instant | GPT-5.4 Pro | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 28.8 | 58.8 |
| Released | 2023-08-09 | 2026-03-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 7 | 16 |
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Category by category
Coding Not comparable
Claude Instant: —, GPT-5.4 Pro: 42.6 (#89)
| Benchmark | Claude Instant | GPT-5.4 Pro |
|---|---|---|
| WeirdML | — | 57.4% |
| HumanEval+ | 50.6% | — |
Reasoning GPT-5.4 Pro leads
Claude Instant: 18.8, GPT-5.4 Pro: 71.0 (#10)
| Benchmark | Claude Instant | GPT-5.4 Pro |
|---|---|---|
| Epoch Capabilities Index | 120.2 | 159.12 |
| ARC-AGI-2 | — | 83.3% |
| SimpleBench | — | 74.1% |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 30% |
| Chess Puzzles | — | 58.6% |
| EnigmaEval | — | 23.8% |
| DTBench | 45.8% | — |
Math Not comparable
Claude Instant: —, GPT-5.4 Pro: 72.0 (#17)
| Benchmark | Claude Instant | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 82.5% |
| FrontierMath Tier 4 | — | 58.5% |
| FrontierMath (Feb 2025 set) | — | 50% |
| FrontierMath Tier 4 (v1) | — | 37.5% |
| GSM8K | 86.7% | — |
Knowledge Not comparable
Claude Instant: —, GPT-5.4 Pro: 68.3 (#6)
| Benchmark | Claude Instant | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | — | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| Vectara Hallucination Rate | — | 8.3% |
| ARC (AI2) Challenge | 86.3% | — |
| MMLU | 73.4% | — |
| TriviaQA | 78.9% | — |
Frequently asked questions
Is Claude Instant better than GPT-5.4 Pro?
GPT-5.4 Pro has enough public results to be ranked (#16); Claude Instant does not yet, so treat this comparison as directional.
How many benchmarks do Claude Instant and GPT-5.4 Pro share?
1 benchmark has published results for both models. Claude Instant has 7 scored results on Noometry and GPT-5.4 Pro has 16.