Deliberate o-series reasoner for hard math, coding, and multi-step analysis
o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....
Context
200K
200,000 tokens
Max output
100K
100,000 tokens
Input
$2.00
per 1M tokens
Output
$8.00
per 1M tokens
Providers
22
23 listings
Intelligence
20.2
Intelligence Index
Pricing
USD per 1M tokens · listed by OpenAI
| Token type | Standard | fast mode | flex mode |
|---|---|---|---|
| Input | $2.00 | $3.50 | $1.00 |
| Output | $8.00 | $14.00 | $4.00 |
| Cache read | $0.50 | — | — |
Lowest input price across providers: $1.82.
Capabilities
ReasoningYes
Effort: low, medium, high
Tool callYes
Structured outputYes
TemperatureNo
AttachmentsYes
Interleaved reasoningNo
Open weightsNo
ModeratedYes
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
- Intelligence20.2#103 of 208
- CodingNot scored—
- AgenticNot scored—
- Arena1,060#104 of 128
| Design Arena category | Elo | Win rate | Arena rank |
|---|---|---|---|
| Data viz | 1,200 | 48.1% | #62 |
| Website | 1,036 | 53.8% | #126 |
| Game dev | 1,034 | 56.9% | #118 |
| Code | 1,018 | 51.9% | #124 |
| UI component | 1,011 | 53.3% | #117 |
Rankings
Position on each OneAtlas leaderboard
Providers · 22
23 listings
OpenAI
NanoGPT
LLM Gateway
Vercel AI Gateway
Kilo Gateway
Eden AI
DevPass (LLM Gateway)
Merge Gateway
AIHubMix
Poe
302.AI
Abacus
Azure
Azure Cognitive Services
Helicone
DigitalOcean
Impossibl
Cloudflare AI Gateway
Jiekou.AI
NEAR AI Cloud
LowRouter
AnyAPI| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 302.AI | o3 | 200K | — | 100K | $2.00 | $8.00 | — | — | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Abacus | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| AIHubMix | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| AnyAPI | openai/o3 | 200K | — | 100K | — | — | — | — | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Azure | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Unknown | No | Apr 16, 2025 |
| Azure Cognitive Services | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Unknown | No | Apr 16, 2025 |
| Cloudflare AI Gateway | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| DevPass (LLM Gateway) | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| DigitalOcean | openai-o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Eden AI | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Helicone | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Unknown | No | Apr 16, 2025 |
| Impossibl | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Jiekou.AI | o3 | 200K | — | 100K | $9.50 | $38.00 | — | $0.47 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Kilo Gateway | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| LLM Gateway | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | No | No | Yes | No | Apr 16, 2025 |
| LowRouter | auto/openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Merge Gateway | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| NanoGPT | openai/o3 | 200K | 200K | 100K | $2.00 | $8.00 | — | $1.00 | — | — | — | Yes | No | No | No | Apr 16, 2025 |
| NEAR AI Cloud | openai/o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| OpenAI | o3 | 200K | — | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Poe | openai/o3 | 200K | — | 100K | $1.82 | $7.27 | — | $0.45 | — | — | — | Yes | Yes | Unknown | No | Apr 16, 2025 |
| Vercel AI Gateway | openai/o3 | 200K | 100K | 100K | $2.00 | $8.00 | — | $0.50 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |
| Vercel AI Gateway | openai/o3-fast | 200K | 100K | 100K | $3.50 | $14.00 | — | $0.88 | — | — | — | Yes | Yes | Yes | No | Apr 16, 2025 |