o3-pro

Our most capable reasoning model, using more compute for the best possible answers on the hardest problems.

Input price
$18.00list $20.00-10%
Output price
$72.00list $80.00-10%
Context
200K
Max output
100K
Modalities
InputTextImageOutputText
147 (#55 of 89)
—
Released
2025-09-24
Knowledge cutoff
2024-05
Try in ChatCompare

Providers

This model is served by the dedicated providers below. We pick the provider for each request, so provider preferences don’t apply, including a provider named in your request. Prices in USD per 1M tokens. Need a custom setup? Contact [email protected].

Included providers1
  • SuccessTTFT
  • OpenAIUnited States——

Pricing

Prices for this model. Each request is billed at these prices, whichever provider serves it.

Input
$18.00list $20.00-10%
per 1M tokens
Output
$72.00list $80.00-10%
per 1M tokens
Cache read
$4.50list $5.00-10%
per 1M tokens
Batch input
$9.00list $10.00-10%
per 1M tokens
Batch output
$36.00list $40.00-10%
per 1M tokens
Web search
$0.009list $0.01-10%
per request

Make a request

Set your provider preferences, then copy the request. It reads your API key from OHMYGPT_API_KEY.

Provider preferences don’t apply to this model. Need a custom setup? Contact [email protected].

curl https://api.ohmygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $OHMYGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/o3-pro",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

Similar models

Other models with the same output types at a similar price.

  • Better value: more capable, lower price
  • Pareto frontier
  • This model
  • Similar models

Capability scores are from Epoch AI’s Epoch Capabilities Index (CC BY 4.0, as of 2026-11-02), which combines dozens of benchmarks with GPT-5 set at 150. epoch.ai/eci

Price: our current input price per 1M tokens in USD, lowest across channels. Dated snapshots and resold copies of the same model are merged into one point; free models are not shown.

Shaded area: capability above and price below the median of all models. Pareto frontier: no other model is both cheaper and more capable.

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