Compare models. Find the differences.
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Benchmark snapshot
4 benchmarks in common.
4 models selected. 4 benchmarks in common.
Reported scores; test settings may differ.
| Benchmark | OpenAI | Anthropic | Anthropic | OpenAI |
|---|---|---|---|---|
| Arena ELOHuman preference | 1,481 | 1,504 | 1,492 | 1,476 |
| LiveBench 1.0General reasoning | 81.6% | 83.0% | 80.1% | 82.2% |
| GPQA DiamondScientific knowledge | Not in our dataset | 92.6% | 93.7% | 96.0% |
| HLEAcademic reasoning | Not in our dataset | Not in our dataset | Not in our dataset | 54.8% |
| SimpleBenchCommonsense reasoning | 82.9% | 81.9% | 80.6% | 83.6% |
| GSOGraduate science | Not in our dataset | 78.4% | Not in our dataset | 79.4% |
| ARC-AGI-2Visual reasoning | 91.7% | 88.3% | 88.3% | 93.3% |
Pricing & context Published USD rates per 1M tokens
| Specification | GPT-6.1 Sol Thinking | Claude Fable 5 Thinking | Claude Opus 5 Thinking | GPT-6 Astra Thinking |
|---|---|---|---|---|
| Input | $2 | $10 | $5 | $10 |
| Output | $10 | $50 | $25 | $50 |
| Context window | 1.1M | 1.0M | 1.0M | 1.1M |
| Pricing details | Explore pricing → | Explore pricing → | Explore pricing → | Explore pricing → |
How to read this comparison
Each column keeps the exact model version you selected. Shared benchmarks are the intersection of their reported results; “all coverage” also shows where evidence is missing. Missing results never count as zero.
These are published benchmark scores, not a controlled head-to-head test. The available evidence does not establish matching evaluation settings, so we show no cross-model winner highlights or deltas. Composite quality scores are omitted because they can summarize different benchmark sets.
Scores and statistics are computed upstream. This page reads a fixed data snapshot; its date describes the snapshot, not the date of every measurement.