High-effort o3 tier for difficult technical reasoning and careful answers
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...
Context
200K
200,000 tokens
Max output
100K
100,000 tokens
Input
$20.00
per 1M tokens
Output
$80.00
per 1M tokens
Providers
9
9 listings
Intelligence
21.9
Intelligence Index
Pricing
USD per 1M tokens · listed by OpenAI
| Token type | Standard |
|---|---|
| Input | $20.00 |
| Output | $80.00 |
Lowest input price across providers: $18.18.
Capabilities
ReasoningYes
Effort: low, medium, high
Tool callYes
Structured outputYes
TemperatureNo
AttachmentsYes
Interleaved reasoningYes
Field: reasoning_details
Open weightsNo
ModeratedYes
Input
TextImage
Output
Text
Benchmarks
Published scores and Design Arena Elo
- Intelligence21.9#93 of 208
- CodingNot scored—
- AgenticNot scored—
- ArenaNot scored—
Rankings
Position on each OneAtlas leaderboard
Providers · 9
9 listings
| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Abacus | o3-pro | 200K | — | 100K | $20.00 | $80.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jun 10, 2025 |
 AI/ML API | openai/o3-pro | 200K | — | 100K | $21.16 | $84.64 | — | — | — | — | — | Yes | Yes | Yes | No | Jun 10, 2025 |
 Eden AI | openai/o3-pro | 200K | — | 100K | $20.00 | $80.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jun 10, 2025 |
 Helicone | o3-pro | 200K | — | 100K | $20.00 | $80.00 | — | — | — | — | — | Yes | Yes | Unknown | No | Jun 10, 2025 |
 Kilo Gateway | openai/o3-pro | 200K | — | 100K | $20.00 | $80.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jun 10, 2025 |
 NanoGPT | openai/o3-pro-2025-06-10 | 200K | 200K | 100K | $22.00 | $88.00 | — | $11.00 | — | — | — | Yes | Yes | Yes | No | Jun 10, 2025 |
| OpenAI | o3-pro | 200K | — | 100K | $20.00 | $80.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jun 10, 2025 |
 Poe | openai/o3-pro | 200K | — | 100K | $18.18 | $72.73 | — | — | — | — | — | Yes | Yes | Unknown | No | Jun 10, 2025 |
 Vercel AI Gateway | openai/o3-pro | 200K | 100K | 100K | $20.00 | $80.00 | — | — | — | — | — | Yes | Yes | Yes | Yes | Jun 10, 2025 |