How much does o3 cost?

o3 costs $10 per million input tokens and $40 per million output tokens. The blended average is $25.00 per million tokens.

What is the context window of o3?

o3 supports a context window of 200K tokens (200,000 tokens) and can generate up to 100K output tokens per request.

o3 is best for: Hard reasoning. It supports chat, vision, code, reasoning, function_calling capabilities.

o3 — Pricing, Benchmarks & Specs

OpenAIreasoning

OpenAI's most powerful reasoning model. State-of-the-art on MATH, coding, and science benchmarks.

Context Window

200K

tokens

Max Output

100K

tokens

Input Price

$10

per 1M tokens

Output Price

$40

per 1M tokens

Speed

tokens/sec

Released

Apr 2025

2025-04-16

Blended Cost

$25.00

per 1M tokens

Value Score

3.8

quality per $

Capabilities

ChatVisionCode GenerationReasoningFunction Calling

Benchmarks

Quality Index

MMLU Pro

92.3

HumanEval (Coding)

97.1

MATH

96.7

Arena ELO

1370

Try in Playground Use via Swfte Connect OpenAI Docs

Compare With

About o3

o3 is a reasoning AI model by OpenAI, released on April 16, 2025. It supports a context window of 200K tokens and can generate up to 100K output tokens.

At $10 per million input tokens and $40 per million output tokens, its blended cost of $25.00/1M tokens places it in the premium pricing tier. Its value score of 3.8 reflects the balance of quality and cost.

Using o3 with Swfte

Access o3 through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try o3 in our AI Playground before integrating.