openai / text-generation API-only released 2025-06-10

o3 Pro

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...

Input / 1M
$20.00
Output / 1M
$80.00
Context
200K
AA Intelligence
21.9
Closed weights — available only as a hosted API text + file + image → text Knowledge cutoff Jun 2024 View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24
$20.00
input / 1M
$80.00
output / 1M
—
cached input / 1M
$100.00
1M in + 1M out
Context window
200,000 tokens
Max output
100,000 tokens
Providers
1
Cheapest provider
OpenAI · $20.00 / $80.00
Best throughput
—
AA Intelligence / Coding / Agentic
21.9 / — / —
✓ Tool calling ✓ Reasoning ✓ Structured outputs ✓ Image input ✓ File input ✗ Audio input ✗ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)
Current: $20.00 input · $80.00 output per 1M tokens

Benchmarks

Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.

AA Intelligence Index
21.9
AA Coding Index
—
AA Agentic Index
—

Providers

1 provider · per 1M tokens · last 30 min metrics
ProviderQuantContextInputOutputUptimeTok/s
OpenAI unknown 200K $20.00 $80.00 — —
Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation
openai
Released on OpenRouter
2025-06-10
Context window
200,000 tokens
Max output
100,000 tokens
Input
text, file, image
Output
text
Knowledge cutoff
June 2024
Tokenizer
GPT
Moderated by provider
Yes
OpenRouter id
openai/o3-pro
Compare with
Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.