o3

Deep reasoning model for math, science and hard debugging.

Input / 1M
$2.00
OpenAI
Output / 1M
$8.00
Cached input
$0.5
discounted reads
Context
200K
100K max output

Price history

input -80.0% · verified 2h ago

Price changes

5 changes
DateFieldFromToChangeSource
2026-09-13Cached input—$0.5—seed
2025-06-10Input$10.00$2.00-80.0%historical-reference
2025-06-10Output$40.00$8.00-80.0%historical-reference
2025-04-16Input—$10.00—historical-reference
2025-04-16Output—$40.00—historical-reference

Specifications

Provider
OpenAI
Model ID
o3
Modality
text+image
Context window
200K tokens
Max output
100K tokens
Tokenizer family
o200k

Cost at similar prices

10,000 requests/month · 2000 in / 600 out tokens