OpenAI
GPT-6.1 Sol Fast
GPT-6.1 Sol's faster serving option. Twice the Standard token price.
Replaces GPT-6 Sol (Fast): same input and output price, same context window.
Run this model
openai/gpt-6.1-sol-fast
Use an endpoint supported by this model.
Get a key for this setup →const response = await fetch('https://api.minirouter.sh/v1/responses', { method: 'POST', headers: { Authorization: `Bearer ${process.env.MINIROUTER_KEY}`, 'Content-Type': 'application/json', }, body: JSON.stringify({ model: 'openai/gpt-6.1-sol-fast', input: 'Why is the sky blue?', max_output_tokens: 1024, }),}) const data = await response.json()console.log(data.output)Use Responses for tools; Chat Completions is supported without tools. Medium is the default reasoning effort. None and minimal are unsupported. Remove temperature, top_p and logprobs. Text and image input only.
Model overview
- Input / 1M
- $4.2
- All-in MiniRouter rate
- Output / 1M
- $21
- All-in MiniRouter rate
- Context
- 1.1M
- 1,050,000 tokens
- Max output
- 128K
- tokens
- Model
- GPT-6.1 Sol
- Fast serving option
- Price
- 2x Standard
- $4 in, $20 out per 1M
- Announced
- 29 Sept 2026
- publisher release
Publisher list prices
Standard or Fast. One Sol.
Fast costs twice as much per token. Above 272K input tokens, the full request costs 2x for input and cache, and 1.5x for output. Current MiniRouter rates are shown above.
Standard, per 1M tokens
- Input
- $2.00
- Output
- $10.00
- Cache read
- $0.10
- Cache write
- $2.50
View chart data
| Rate | Standard | Fast |
|---|---|---|
| Input | $2.00 | $4.00 |
| Output | $10.00 | $20.00 |
| Cache read | $0.10 | $0.20 |
| Cache write | $2.50 | $5.00 |
Request options
Use Responses for tools.
OpenAI supports tool calling through Responses. Chat Completions supports text and image requests without tools. Recheck your integration before switching models.
OpenAI model documentation- 01
Start at medium
Reasoning supports low, medium, high, xhigh and max. Medium is the default; none and minimal are unsupported.
- 02
Review sampling
Remove temperature, top_p and logprobs when migrating reasoning requests.
- 03
Keep input supported
Use text or images. MiniRouter does not admit PDF input for these models.
One route, standard clients.
Authenticate with a MiniRouter bearer key. Caller-provided upstream credentials are not used on this route.
Read model setup docs →https://api.minirouter.sh/v1openai/gpt-6.1-sol-fast/v1/chat/completions/v1/messages/v1/responsesmax_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning
Not enforced; a requested format is dropped and the answer is plain text.
Configured provider
Priority follows the live catalog order.
Input: text, image · Output: text
| Provider | Priority | Input / 1M | Output / 1M | Parameters | Access |
|---|---|---|---|---|---|
vercel | 1 | $4.2 | $21 | max_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning | MiniRouter balance |