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OpenAI: o3 Pro

openai/o3-pro

OpenAI: o3 Pro is a 200,000-token model served on Composite at $25.0 per million tokens in and $100 per million tokens out.

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Specifications

Specifications and pricing as served by Composite
Model IDopenai/o3-pro
Providercv11
Context window200,000 tokens
Acceptstext, file, image
Returnstext
Input price$25.0 per million tokens
Output price$100 per million tokens
Prompt cachingNot offered for this model
Web search$0.0125 per result
ThinkingAlways on for this model
ModeratedYes - by the provider
Cost on a monthly planAbout 240 plan credits per typical call (8k in, 1k out)
Routing endpoints2 (base plus 1 routing variant)

Measured on Composite

This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.

Routing variants

The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.

RouteModel IDProviderPrice
cheapThink openai/o3-pro:cheapThink cv11 $25.0 per million tokens input · $100 per million tokens output

Pricing

$25.0 per million tokens input · $100 per million tokens output

Credits pay the provider’s price plus 25%; cache hits cost less.

On a monthly plan, a typical call (8k tokens in, 1k out) uses about 240 plan credits, at the provider's own price.

Provider

cv11

Roleplay fit

This is an OpenAI model, a dependable baseline with broad instruction-following and consistent formatting across long conversations.

Context behavior

With a 200,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.

Cost for regular use

It is priced for quality-sensitive scenes, where writing quality and instruction-following matter more than minimizing per-message cost.

From the provider

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...

Supplied by cv11, not written by Composite.