o3 is OpenAI's language model with a 200K context window and up to 100K output tokens, available from 5 providers, starting at $2.00 / 1M input and $8.00 / 1M output. A powerful, well-rounded reasoning model that sets a high bar for math, science, coding, and visual reasoning, with strong technical writing and instruction-following capabilities.
Specifications
Canonical IDopenai-o3
TypeLanguage
StatusDeprecated
CreatorOpenAIOpenAI
Providers
Context Window200K tokens
Max Output100K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 1 year ago
Knowledge Cutoff · 2 years ago
Deprecation Date
Benchmarks
Intelligence Index
38.4
#86
Coding Index
38.4
#52
Math Index
88.3
#35
MMLU-Pro
0.9
#27
GPQA
0.8
#78
HLE
0.2
#64
LiveCodeBench
0.8
#26
AIME
0.9
#6
IFBench
0.7
#48
Time to First Token
5.44s
#438
SciCode
0.4
#73
MATH-500
1.0
#2
AIME 2025
0.9
#35
LCR
0.7
#26
TerminalBench Hard
0.4
#47
TAU2
0.8
#107
Output TPS

Capabilities

Input3/5
Text
Image
Audio·
Video·
PDF
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning
Adaptive Reasoning·
Function Calling
Parallel Function Calling·
Structured Outputs
Native JSON Schema
Web Search
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Web Search
$ / request
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
$2.00$8.00$0.5N/A$1.00$4.00N/A
Gradient AI logo
Gradient AI
gradient_ai/openai-o3
$2.00$8.00N/AN/A
$2.00$8.00$0.5N/A$1.00$4.00$0.25
OpenRouter logo
OpenRouter
openai/o3
$2.00$8.00$0.5$0.010
$2.00$8.00$0.5N/A

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
o3 Deep Research200K$2.50$40.00Available
o4 Mini Deep Research200K$2.00$8.00Available
o3 Pro200K$20.00$80.00Available
o3200K$2.00$8.00Current
o4 Mini200K$1.00$4.00Available
o4 Mini High200K$1.10$4.40Available
o1 Pro200K$150.00$600.00Available
o3 Mini High200K$1.10$4.40Available
o3 Mini200K$1.10$4.40Available
o1200K$15.00$60.00Available
o1 Preview128K$15.00$60.00Available

Model IDs

azure/o3
azure/o3-2025-04-16
azure/us/o3-2025-04-16
gradient_ai/openai-o3
o3
o3-2025-04-16
openai-o3
openai/o3
vercel_ai_gateway/openai/o3