Home / All model prices / OpenAI / o3 O OpenAI
o3 OpenRouter price Model overview o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....
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 $2
Cached input $0.5
Cache write 5m —
Cache write 1h —
Output $8 Capabilities and formats image text 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: $2 Cached input: $0.5 Cache write 5m: — Cache write 1h: — Output: $8
