o3-pro
ActiveHighest capability reasoning model.
Updated 4 days agoStructured data from Modeldex catalog
VisionAgenticLong contextCode
Knowledge cutoff
Jun 30, 2024(1.8 years ago)
API release
Jun 11, 2025(10 months ago)
Not enough benchmark coverage yet for an Intelligence Index — needs at least 3 results across 2 categories.
History
o3-pro became available via the OpenAI API on 2025-06-10.
Training & availability
Training data has a knowledge cutoff of 2024-06-30 — information about events after that date is unlikely to appear in the model's responses. OpenAI has not released the underlying model weights — access is via their hosted API only.
Capabilities
-
Context window: 200K tokens.
-
Max output: 100K tokens.
-
Input modalities: text, image.
Recommended for: vision, agentic, long-context, code.
Limitations
- The knowledge cutoff is 21 months old — this model will not know about recent events, releases, or API changes.
Quick start
Minimal example using the openai API. Copy, paste, replace the key.
from openai import OpenAI
client = OpenAI(api_key="sk-...")
resp = client.chat.completions.create(
model="o3-pro",
messages=[{"role": "user", "content": "Explain quantum computing in one sentence."}],
)
print(resp.choices[0].message.content)Benchmarks
| Benchmark | Score | Source |
|---|---|---|
| Aider PolyglotCoding | 84.9% pass@2 | Third-party Papers With Code |
| SWE-bench VerifiedCoding | 71.7% resolved | Third-party Papers With Code |
Integrations & tooling support
- Tool calling
- Supported
- Structured outputs
- Supported
Price vs quality
Strong benchmark performance
Top-tier benchmarks. Pricing not publicly available — check the provider.
- Quality percentile
- 89.3%
- Effective price
- —
- Pricing breakdown
- — in
— out
vs 2 benchmarks
pricing not available
Community ratings
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