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o3

openaiopenai/o3

OpenAI's powerful reasoning model that pushes the frontier across coding, math, science, and visual perception. Excels in complex queries requiring multi-faceted analysis. Succeeded by GPT-5.

Context Length
200K
Max Output
100K
Input Price
$2.40/ 1M tokens
Output Price
$9.60/ 1M tokens

Modalities

textimage→text

Pricing Breakdown

TypeRate
Input$2.40 / 1M tokens
Output$9.60 / 1M tokens

Supported Parameters

max_tokenstoolstool_choiceresponse_formatreasoningstop

API Usage Examples

cURL
curl https://api.therouter.ai/v1/chat/completions   -H "Content-Type: application/json"   -H "Authorization: Bearer $THE_ROUTER_API_KEY"   -d '{
    "model": "openai/o3",
    "messages": [
      {"role": "user", "content": "Summarize the key points from this input."}
    ]
  }'