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.
AI model
OpenAI: GPT-6.1 Sol Pro
openai/gpt-6.1-sol-pro
OpenAI: GPT-6.1 Sol Pro is a 1,050,000-token model served on Composite at $0.320 per million tokens in and $5.00 per million tokens out.
Try in PlaygroundSpecifications
| Model ID | openai/gpt-6.1-sol-pro |
|---|---|
| Provider | OpenAI |
| Context window | 1,050,000 tokens |
| Accepts | file, image, text |
| Returns | text |
| Input price | $0.320 per million tokens |
| Output price | $5.00 per million tokens |
| Prompt caching | Supported — cached input is 60% off the list rate on pay-as-you-go credits |
| Web search | $0.0100 per result |
| Thinking | Always on for this model |
| Moderated | Yes - by the provider |
| Cost on a monthly plan | 13 requests of the daily allowance per call |
| Plans that may spend on it | Plus, Pro, Ultra, Enterprise |
| Routing endpoints | 2 (base plus 1 routing variant) |
Routing variants
The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.
| Route | Model ID | Provider | Price |
|---|---|---|---|
| cheapThink | openai/gpt-6.1-sol-pro:cheapThink |
OpenAI | $0.320 per million tokens input · $5.00 per million tokens output |
Pricing
$0.320 per million tokens input · $5.00 per million tokens output
Input and output are charged at the provider’s list price.
On a monthly plan, one call costs 13 requests of that day's allowance. That needs the Plus or Pro or Ultra or Enterprise plan; credits pay for it on any plan.
Provider
OpenAI
Roleplay fit
This is an OpenAI model, a dependable baseline with broad instruction-following and consistent formatting across long conversations.
Context behavior
With a 1,050,000-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 low enough for high-volume daily roleplay without the per-message cost adding up quickly.
From the provider
GPT-6.1 Sol Pro is the same underlying model as [GPT-6.1 Sol](https://openrouter.ai/openai/gpt-6.1-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
Supplied by OpenAI, not written by Composite.
Related models
Composite GPT Router · OpenAI: GPT-6.1 Sol · OpenAI: GPT-6 Luna Pro