o3 Mini vs o3 Mini High

API pricing, benchmark indices and specs — updated 19 October 2026.

openai · A · API-only
Input / 1M
$1.10
Output / 1M
$4.40
AA index
12.5
proprietary · 200K context
openai · B · API-only
Input / 1M
$1.10
Output / 1M
$4.40
AA index
11
proprietary · 200K context

Specification comparison

Differences are highlighted; identical values are muted.

Specification o3 Mini o3 Mini High
Deployment API-only (closed weights) API-only (closed weights)
Parameters n/a — API-only n/a — API-only
Architecture n/a — API-only n/a — API-only
Context length 200,000 200,000
Licence Proprietary Proprietary
Commercial use Per API terms Per API terms
Languages n/a — API-only n/a — API-only
Downloads 30d n/a — API-only n/a — API-only
Downloads all time n/a — API-only n/a — API-only
Quantizations on the Hub n/a — API-only n/a — API-only
Gated n/a — API-only n/a — API-only
First seen on the Hub n/a — API-only n/a — API-only
API input price / 1M tokens $1.10 $1.10
API output price / 1M tokens $4.40 $4.40
Est. cost per 1M input + 1M output tokens $5.50 $5.50
Cached input / 1M tokens $0.55 $0.55
AA Intelligence Index 12.5 11
AA Coding Index — 16.3
AA Agentic Index — 0.9
Max output tokens 100,000 100,000
API providers 1 1
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

o3 Mini $5.50
o3 Mini High $5.50

Adjacent comparisons