o3 Pro
Jun 2025
o3 ProCompare inon
Benchmarks of o3 Pro9
BenchmarkByScoreRank
Overall1
Reasoning4
Agents2
Legacy · saturated or no longer reported2
No benchmark matches
Rankingat high effort?
Strong at
Alternatives?
ModelScoreCostPer taskWhat changes
CheaperGPT-5high+4%-90%$1.25 / $10
OpenR1 0528unstated-16%-98%$0.39 / $1.63Context: 200K → 128K+1Cheapero3high-4%-90%$2 / $8
OpenKimi K2 0711unstated-30%-98%$0.50 / $2Context: 200K → 128K+2OpenGPT OSS 120Bhigh-51%-100%$0.092Context: 200K → 131K+1ModelScoreCostPer taskWhat changes
GPT-5high+4%-90%$1.25 / $10ModelScoreCostPer taskWhat changes
R1 0528unstatedOpen-16%-98%$0.39 / $1.63Context: 200K → 128K+1Kimi K2 0711unstatedOpen-30%-98%$0.50 / $2Context: 200K → 128K+2GPT OSS 120BhighOpen-51%-100%$0.092Context: 200K → 131K+1
Qwen3 32BunstatedOpen-53%-97%$0.70 / $2.80Context: 200K → 33K+1QwQ 32BOpen-75%-99%$0.15 / $0.40Context: 200K → 131K+1ModelScoreCostPer taskWhat changes
GPT-5high+4%—$1.25 / $10o3high-4%—$2 / $8GPT-4.1unstated-38%—$2 / $8GPT OSS 120BhighOpen-51%—$0.092Context: 200K → 131K+1GPT-4.1 Miniunstated-62%—$0.40 / $1.60GPT-4ounstated-73%—$2.50 / $10Context: 200K → 128KGPT-4o Miniunstated-96%—$0.15 / $0.60Context: 200K → 128KGPT-6.1 Solmediumn/a—$0.21Remove unsupported parameters+5All OpenAI models →Benchmarks
all categoriesCoding
Aider Polyglot · two attempts84.9#2
FAQ
How much does o3 Pro cost?›
$20 per 1M input tokens and $80 per 1M output tokens.
Is o3 Pro free to use?›
There is no free API; the cheapest paid price is $20 per 1M input tokens.
How good is o3 Pro, and what is it best at?›
#105 of 334 in Chat & Knowledge, #2 of 15 in Coding, #15 of 16 in Agents & Tool Use.
Is o3 Pro better than GPT-5?›
On Aider Polyglot · two attempts, o3 Pro scores 84.9 vs 88 — lower.
How can I use o3 Pro?›
Through the API of OpenAI.
What is the context window of o3 Pro?›
200K tokens, with up to 100K output tokens.
When was o3 Pro released? Is there a newer version?›
Released 2025-06-10. It has been superseded by GPT-5.
Is o3 Pro open source?›
No, o3 Pro is a closed model available through an API. The closest open-weights option here is R1 0528.
Can o3 Pro read images?›
It accepts text and images, PDF files as input.
What is o3 Pro?›
o3 Pro is a closed language model from OpenAI, released Jun 2025.
What are the best alternatives to o3 Pro?›
GPT-5 (cheaper), R1 0528 (open weights).