← All models
Input / 1M
$2.00
Output / 1M
$8.00
Context
200K tokens
Max output
100K tokens
Input
Text, Image
Released
1y ago
Pricing
Input tokens$2.00 per 1M
Output tokens$8.00 per 1M
Provider list priceExactly what your balance is debited; our fee is charged when you buy credits
About o3
O-series reasoning model for hard analysis, math, coding, and planning
VisionReasoningTools
What it supports
- Tool calling (function calling)
- JSON mode and structured output
- Image input (vision)
- Audio input
- Extended reasoning
- Streaming responses
- OpenAI SDK, Anthropic SDK and any OpenAI-compatible client
Make a request
curl https://rapidrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $RAPIDROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/o3-2025-04-16",
"messages": [{ "role": "user", "content": "Hello" }]
}'Frequently asked
How do I call o3 through an OpenAI-compatible API?
Point any OpenAI-compatible client at https://rapidrouter.ai/api/v1 with a Rapid Router API key and set the model to openai/o3-2025-04-16. The chat completions endpoint is https://rapidrouter.ai/api/v1/chat/completions.
What is the context window of o3?
o3 has a context window of 200,000 tokens on Rapid Router, and returns up to 100,000 output tokens per reply.
What can o3 do?
On Rapid Router, o3 supports tool calling, image input, extended reasoning.