Home / All model prices / OpenAI / o1 O OpenAI
o1 OpenRouter price Model overview The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason...
Context window 200,000 tokens
Knowledge cutoff —
Price last verified 2026-09-06
First observed 2026-08-11 Descriptions, capabilities, and tariffs come from the linked source. First-party prices take priority; OpenRouter fallbacks are labelled.
Current price Estimated API value in USD per million tokens, backed by OpenRouter's public Models API.
Input $15
Cached input $7.5
Cache write 5m —
Cache write 1h —
Output $60 Capabilities and formats text image file include reasoning max tokens reasoning response format seed structured outputs tool choice tools Performance references No comparable benchmark data is currently available.
PRICE EVOLUTION Price history Original observation and every later change, including any change of price source.
Original observed price Official price unavailable 2026-08-11
Input: — Cached input: — Cache write 5m: — Cache write 1h: — Output: —
Price change OpenRouter price 2026-08-20
Input: $15 Cached input: $7.5 Cache write 5m: — Cache write 1h: — Output: $60
