Head-to-head · 7 models compared
ChatGPT vs Claude
OpenAI and Anthropic between them account for 7 rated models on the OpenRating Index. ChatGPT's strongest entry is GPT-5.6 Sol (max) at 61.2, against Claude's Claude Opus 5 (max) at 63.4. Both are scored on the same axes, with the same tests, below.
Who wins on each axis
ChatGPT takes 1 of 3 axes, Claude takes 2.
OpenRating Index
Claude
63.4
Claude: Claude Opus 5 (max) · composite 0–100
Output speed
Claude
195 tok/s
Claude: Claude 4.5 Haiku · blended tok/s, fastest model
Cost / task
ChatGPT
$0.048
ChatGPT: GPT-5.6 Luna (max) · lowest model, per benchmark run
Every rated model, side by side
Sorted by OpenRating Index. Every figure is measured under the same standardised workload.
| Model | Provider | Index | Reasoning | Speed | Cost / task | Input / 1M |
|---|---|---|---|---|---|---|
| Claude Opus 5 (max) | Claude | 63.4 | 89.4 | 59 tok/s | $2.34 | $4.8 |
| Claude Fable 5 (with fallback) | Claude | 62.3 | 87.8 | 72 tok/s | $3.14 | $5.5 |
| GPT-5.6 Sol (max) | ChatGPT | 61.2 | 85.0 | 70 tok/s | $1.23 | $2.2 |
| GPT-5.6 Terra (max) | ChatGPT | 56.4 | 76.8 | 86 tok/s | $0.51 | $0.6 |
| GPT-5.6 Luna (max) | ChatGPT | 52.5 | 70.8 | 149 tok/s | $0.048 | $0.08 |
| Claude 4.5 Haiku | Claude | 49.6 | 68.2 | 195 tok/s | $0.22 | $0.4 |
| gpt-oss-120b (high) | ChatGPT | 44.5 | 61.8 | 164 tok/s | $0.073 | $0.06 |
Put ChatGPT and Claude head to head yourself
Pick any combination of models and compare their full cost breakdown — reasoning, answer generation, cache overhead, and input payload — in the OpenRating comparison tool.
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