The price of a token
Nearly the whole market prices output between 5× and 6× input, across 5 models from 1 labs. Distance along a ray is price class; distance off it is a pricing decision, not a cost difference.
API list prices for frontier models, in USD per million tokens — standard tier, text, base context. Each number is verified against the lab’s official pricing page (date shown); the daily series is in the free API. More labs get added as they’re verified — never before.
Anthropic
GoogleThe dashed rays are constant output÷input ratios. Distance along a ray is price class; distance off it is pricing strategy.
OpenAI
- gpt-5.5-proIn $30.00Out $180.006.0× out÷inblended 3:1 $67.50verified 2026-08-10
- gpt-5.6-solIn $5.00Out $30.006.0× out÷inblended 3:1 $11.25verified 2026-08-10
- gpt-5.4In $2.50Out $15.006.0× out÷inblended 3:1 $5.63verified 2026-08-10
- gpt-5.6-terraIn $2.00Out $12.006.0× out÷inblended 3:1 $4.50verified 2026-08-10
- gpt-5.6-lunaIn $0.20Out $1.206.0× out÷inblended 3:1 $0.45verified 2026-08-10
| Model | Input $/MTok | Output $/MTok | Out÷In | Blended 3:1 | Verified |
|---|---|---|---|---|---|
| gpt-5.5-pro | $30.00 | $180.00 | 6.0× | $67.50 | 2026-08-10 |
| gpt-5.6-sol | $5.00 | $30.00 | 6.0× | $11.25 | 2026-08-10 |
| gpt-5.4 | $2.50 | $15.00 | 6.0× | $5.63 | 2026-08-10 |
| gpt-5.6-terra | $2.00 | $12.00 | 6.0× | $4.50 | 2026-08-10 |
| gpt-5.6-luna | $0.20 | $1.20 | 6.0× | $0.45 | 2026-08-10 |
Last snapshot: 2026-09-20 06:17 UTC · List prices, not negotiated rates; cached-input, batch, and long-context tiers vary by lab and are noted where they differ. Same rule as the GPU side: a missing number beats a wrong one.