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o3

OpenAI · chat model

o3 is listed here as a chat model from OpenAI. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.

Input
$2.0000 / 1M tokens
Output
$8.0000 / 1M tokens
Cached input
$0.5000 / 1M tokens
Context
100.0K
Compare similar models Open a side-by-side table using this route and the closest match from the current catalog. Estimate workload cost Use token counts, request volume, and cache assumptions to check a realistic monthly bill. Explore benchmark family Review source-backed benchmark rows for the attached base model family. Check data sources See how pricing data is generated and what still needs provider verification.

Quick read

Best for

Use this page when you need a fast view of cost, context size, and supported features before testing the model in your own workload.

Things to verify

Always check the provider page for discounts, cache pricing, region rules, and any model limits that may not appear in public metadata.

Pricing

Item Price
Input
$2.0000 / 1M tokens
Output
$8.0000 / 1M tokens
Cached input
$0.5000 / 1M tokens
Embedding
$2.0000 / 1M tokens
Priority input
$3.5000 / 1M tokens
Priority output
$14.0000 / 1M tokens
Flex input
$1.0000 / 1M tokens
Flex output
$4.0000 / 1M tokens

Token limits

Context window
100.0K
Max input tokens
200.0K
Max output tokens
100.0K
Max tokens
100.0K

Capabilities

Capability Supported
Vision ✅
Function calling ✅
Parallel function calling —
Tool choice ✅
Prompt caching ✅
Reasoning ✅
Response schema ✅
System messages —
Audio input —
Audio output —
Web search ✅
PDF input ✅
Video input —

Benchmarks

Most benchmark rows are attached to the base model family rather than this provider route. Open benchmark explorer

Benchmark Score Metric Scope Checked Source
AIME 2025 88.9% accuracy (%) Base model: o3 (OpenAI o3 (high)) 2026-05-31 Link
GPQA Diamond 83.3% accuracy (%) Base model: o3 (OpenAI o3 (high)) 2026-05-31 Link
SWE-bench Verified 69.1% accuracy (%) Base model: o3 (OpenAI o3 (high)) 2026-05-31 Link

Sources

Source links
Pricing data LiteLLM model cost map
Synced at 2026-05-28

Docs

Official docs

Similar models

This list is ranked by overall similarity. Use filters to emphasize the lens that matters most for the replacement you are making.

Comparing from
Model Cost Input shape Features Context Why it is close
o3
OpenAI
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
100.0K
Current model
Reference row

Overall blends cost, modality overlap, capabilities, and context.

Model Cost Input shape Features Context Why it is close
o3-2025-04-16
OpenAI
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
100.0K
Same provider
Overall 100%
o4-mini
OpenAI
In $1.1000 / 1M tokens
Out $4.4000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
100.0K
Same provider
Overall 91%
o4-mini-2025-04-16
OpenAI
In $1.1000 / 1M tokens
Out $4.4000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
100.0K
Same provider
Overall 91%
openai
vercel_ai_gateway
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choiceResponse schema
100.0K
Text + image covered
Overall 88%
gpt-5
OpenAI
In $1.2500 / 1M tokens
Out $10.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
128.0K
Same provider
Overall 86%
gpt-5.1
OpenAI
In $1.2500 / 1M tokens
Out $10.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
128.0K
Same provider
Overall 86%
gpt-5.1-2025-11-13
OpenAI
In $1.2500 / 1M tokens
Out $10.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
128.0K
Same provider
Overall 86%
claude-3-7-sonnet-20250219
Anthropic
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 84%
claude-4-sonnet-20250514
Anthropic
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 84%
claude-sonnet-4-5-20250929
Anthropic
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 84%
GPT-4.1
OpenAI
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
32.8K
Same provider
Overall 82%
gpt-4.1
Azure
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
32.8K
Text + image covered
Overall 77%
gpt-4.1-2025-04-14
Azure
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
32.8K
Text + image covered
Overall 77%
azure
Azure
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
100.0K
Partial I/O overlap
Overall 70%
Missing text, image
o3-2025-04-16
Azure
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
VisionFunction callingTool choicePrompt caching
100.0K
Partial I/O overlap
Overall 70%
Missing text, image
ai21.jamba-1-5-large-v1:0
Bedrock
In $2.0000 / 1M tokens
Out $8.0000 / 1M tokens
imagepdftext
Output: text
Low overlap
256.0K
Partial I/O overlap
Overall 54%
Missing image