o3
openai/o3- OpenAI
- Family · o3
- Released 16 Apr 2025
- Image · Text · File → Text
- Tools · JSON · Vision
Not on OSMEXO yet
Spec & list price
Context195K
Max output100K
Input / 1M$2.00
Output / 1M$8.004× input
Scores · standing
Intelligence20.2#143/490
Usage
Tokens / day113.7M▲ 14% 7d
Usage rank#302
Requests / day25.1K
Tool calls / req0.09
Per request · 30 days
Avg input2.9K0.2× median
Avg output733about median
Cache hit43%0.6× median
Reasoning share77%1.4× median
Tool-call failures0.1%0.1× median
Consumption
Peak 216.3M 10 OctLow 45.9M 17 OctRank today #302
News & trends
News · latest from OpenAI
- GPT-6.1 Terra vs. Claude Opus 5.5: Cheaper and faster in three tests at maxthenewstack.io · 2 Nov
- Chinese labs now target OpenAI's GPT-6 Astra for distillationfork.zone · 1 Nov
- GPT-6.1 Terrasimonwillison.net · 31 Oct
- GPT-5.6 Sol can beat Factorio on peaceful moderyanmadden.net · 31 Oct
Benchmarks
bar = share of the top score · Benchmark data: Artificial AnalysisSpeed · median across providers, latest day
Output speed#129/33478 tok/s1.2× faster than median
First token#2632.04 s2.0× longer than median
First answer token#333.39 sthinking included
#25 cheapest of 26 with a similar score
Value
Intelligence Index
Blended price per 1M tokens (log)
Technical details
- Tokenizer
- GPT
- Knowledge cutoff
- 2024-06-30
- Moderation
- moderated
Request parameters 8
- tools
- tool_choice
- response_format
- structured_outputs
- reasoning
- include_reasoning
- max_tokens
- seed
When to use
Best for
- Math and competitive-style reasoning
- Coding help with deep reasoning
- Image and chart understanding
- Tool-calling agents on hard tasks
Think twice for
- Latency-sensitive chat
- High-volume simple tasks
- Self-hosting (closed weights)
Same family
O3Alternatives
other vendors · similar capability- T25.0
- 16.1
- 24.9
- 18.9
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