OpenAI: o3
Listed on OpenRouter as openai/o3 since Apr 20, 2025. 180 snapshot observations, 1 repricing. All-time low
$3.50per 1M blended · $2.00 in / $8.00 out
USD per 1M tokens · blended at 3 input : 1 output · at this price for 483 days (since Jun 13, 2025)
All-time low$3.50Jun 13, 2025
All-time high$18Apr 20, 2025
Change since first seen-80.0%$18 on Apr 20, 2025
Listed price over time
| Observed | Input | Output | Blended | Change |
|---|---|---|---|---|
| Jun 13, 2025 | $2.00 | $8.00 | $3.50 | -80.0% |
| Apr 20, 2025 | $10 | $40 | $18 | first observation |
Where it is listed today
Current listed rates across the sources LLMPI compares. The cheapest blended row is highlighted; lower price never implies identical terms, speed, or quality.
| Source | Input | Output | Blended | Listing ID |
|---|---|---|---|---|
| OpenRouter Pricing evidence | $2.00 | $8.00 | $3.50 | openai/o3 |
| AIHubMix Pricing evidence | $2.00 | $8.00 | $3.50 | o3 |
| Nous Portal Provider catalog (not exact listing evidence) | $2.00 | $8.00 | $3.50 | openai/o3 |
Evidence and scope
- Source
- OpenRouter public model listing
- Archive
- Wayback Machine snapshots of that listing (weekly-grade, from July 2023) plus LLMPI's own daily snapshots since June 2026
- Last observed
- Oct 9, 2026
- Data
- history.json (CC BY 4.0)
This is the listed standard text-token rate for one OpenRouter listing ID. It does not normalize caching, batch discounts, long-context tiers, providers behind the listing, or model quality. A price can also move because OpenRouter's default route changed provider.