OpenAI vs Anthropic: pricing, speed, and context
For a current flagship API comparison, GPT-5.6 Sol represents OpenAI and Claude Fable 5 represents Anthropic. The table uses the same verified pricing, benchmark, and context sources used across All AI Ask; speed is marked unavailable when this snapshot has no measurement.
Which is cheaper, faster, or larger?
| Provider | Model | Blended price / 1M tokens | Measured speed | Context window |
|---|---|---|---|---|
| OpenAI | GPT-5.6 Sol | $11.25 (3:1 input:output) | 44 tok/s | 1M tokens |
| Anthropic | Claude Fable 5 | $20.00 (3:1 input:output) | 41 tok/s | 1M tokens |
Pricing and model specs verified through 2026-08-14. Speed comes from the controlled benchmark snapshot; see the speed methodology.
How should you choose?
Choose on workload and measured evidence rather than vendor reputation alone: compare the token rate that matches your input/output mix, use the documented context window for long documents, and treat missing speed data as unknown rather than as a ranking. For more models, see the full alternatives catalog.