Skip to content
Models/openai/OpenAI o3

OpenAI o3

OpenAI·openai
o3Text·

OpenAI O3 reasoning model

Context Window
200K
Input Price /M in
$2.00$1.80/M in
Output Price /M out
$8.00$7.20/M out
Cached Input Price /M
$0.45/M
Max Completion
100K
Input Modalities
text, image
Output Modalities
text
reasoningFunction callingChatVisionStreaming-10%code

Description

OpenAI O3 reasoning model

Available Providers

AllToken can route requests to the providers below based on route priority and policy.

ProviderContextInputOutputCached / MLatencyThroughput

Best For

OpenAI O3 reasoning model

How To Use This Model

Use the exact model ID shown below. This is the safest way to avoid call failures, variant mismatches, or incorrect route assumptions.

curl https://api.alltoken.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "o3",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'
Supported Parameters
temperaturetop_pmax_tokenstoolsreasoning_effort
API Key Setup
Smart Routing

Let the platform choose the best provider path automatically.

Default Model

If a request does not specify a model, default the key to o3.

Forced Model

Always override incoming requests and lock the key to o3.