openai

OpenAI: o3

OpenAI's o3 model supports image, text, and file inputs; it can process up to 200,000 tokens of context and offers reasoning capabilities along with support for tools. While structured output is not provided, the model excels in handling complex tasks across multiple modalities. This model should be considered by those who require extensive contextual understanding and need access to diverse input types; however, its high price point at $2.0 per million input tokens and $8.0 per million output tokens might make it less suitable for smaller projects or frequent use cases. Its blended benchmark score of 77.7 across three independent benchmarks indicates strong performance but may not be the best choice if cost is a primary concern.

Quality Score
100/100
price + capability + benchmarks
Input Price
$2.00
per 1M tokens
Output Price
$8.00
per 1M tokens
Context Window
200,000
tokens

Benchmark results

Independent, published benchmarks. Blended score 77.7 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →

BenchmarkMeasuresScore
Aider Polyglot code editing across languages 81.3
AI Index broad capability composite 51.3
EQ-Bench emotional understanding in dialogue 74.7
Model ID
openai/o3
Vendor
openai
Released
April 2025
Tokenizer
GPT
Input Modalities
image, text, file
Output Modalities
text
Max Output
100,000 tokens
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
no
Moderated
yes

What it costs in practice

Computed from the current $2.00/M input and $8.00/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.07
Classify 1,000 customer emails 500k in / 50k out $1.40
A month of a busy support chatbot 5M in / 2M out $26.00

Similar models

Quick answers

How much does OpenAI: o3 cost?
$2.00 per million input tokens and $8.00 per million output tokens.
What is OpenAI: o3's context window?
200,000 tokens, roughly 300 pages of text in a single request.
Does OpenAI: o3 support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can OpenAI: o3 process images?
Yes, it accepts image input.