AI Model Watch
Models / OpenAI

o3

Deprecated

o-series reasoning model. Snapshot o3-2025-04-16 shuts down 2026-12-11, replaced by gpt-5.5. Pricing still on spec page: $2 in / $0.50 cached / $8 out per 1M.

Lifecycle warning

This model is deprecated. Scheduled shutdown: 11 Dec 2026. Recommended migration: gpt-5.5.

Provider
OpenAI
Status
Deprecated
Input price
$2 / 1M tokens
Output price
$8 / 1M tokens
Cached input
$0.5 / 1M tokens
Blended price
$3.50 / 1M tokens
Context window
200,000 tokens (200K)
Max output
100,000 tokens
Modality
text, image
Knowledge cutoff
2024-06-01
Released
16 Apr 2025
API string
o3-2025-04-16

Source: OpenAI official documentation ↗

See also

Compare o3 with…

o3 vs Claude Opus 4.8→

$3.50 vs $10 blended /M

o3 vs Claude Opus 4.7→

$3.50 vs $10 blended /M

o3 vs Claude Opus 4.6→

$3.50 vs $10 blended /M

o3 vs Claude Opus 4.5→

$3.50 vs $10 blended /M