arena-fast
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Cognition model arena-fast. Prices are in US dollars per million tokens.
Current price, since 2026-07-30: input $0.10, output $0.50, cached input $0.00, cache write $0.00.
Cognition has no official pricing page that model-prices checks.
Price a request with this model.
Standard price history#
| From | Input | Cached input | Cache write | Output | Longer prompts | Dated by | Source |
|---|---|---|---|---|---|---|---|
| 2026-07-30, first record | $0.10 | $0.00 | $0.00 | $0.50 | first observed | link |
A blank cache price is charged at the input price. Longer prompts list the prices for requests whose whole prompt exceeds the size given.
import model_prices
model_prices.rates("arena-fast", provider="cognition")