GPT-6.1 Sol Pro

gpt-6.1-sol-pro

GPT-6.1 Sol Pro is an enhanced reasoning version of GPT-6.1 Sol. It uses the same underlying model as GPT-6.1 Sol but enables reasoning.mode=pro, allowing the model to spend significantly more computation on each request. The additional reasoning budget helps GPT-6.1 Sol Pro handle harder problems that require deeper analysis, longer planning, and higher accuracy. It is designed for tasks where getting the best possible answer is more important than response speed or cost efficiency. Compared with GPT-6.1 Sol, GPT-6.1 Sol Pro consumes significantly more reasoning tokens per request, resulting in higher usage costs and longer response times.

Context Window

1.1M tokens

Maximum Output

128K tokens

Release Date

Sep 29, 2026

Modalities

GPT-6.1 Sol Pro Pricing

Token TierInput PriceOutput PriceCache ReadCache Create 5m
<=272K$2/M$10/M$0.1/M$2.5/M
>272K$4/M$15/M$0.2/M$5/M

GPT-6.1 Sol Pro API Capabilities

Reasoning

Supported

Tool calling

Supported

Temperature parameter

Not supported

Attachments

Supported

Knowledge Base

2026-04-30

Endpoint Protocols

Responses APIMessages APICompletions API

Model Highlights

Verified strengths and model tradeoffs.

Expanded Reasoning

Pro mode performs more model work to pursue better answers on difficult tasks.

Adjustable Reasoning Effort

Reasoning effort remains independently adjustable within pro mode.

Long-Context Foundation

Shares GPT-6.1 Sol’s underlying model and 1,050,000-token context window.

Use Cases

Practical workloads suited to the model.

Migration Plan Review

Analyze database migration plans to identify failure modes before implementation.

Complex Debugging

Investigate difficult coding problems when additional reasoning time is acceptable.

Analytical Review

Examine complex professional analyses where answer quality outweighs response speed.

How to Use GPT-6.1 Sol Pro via the TokenHub API

Create API key
import OpenAI from "openai"

const client = new OpenAI({
  apiKey: process.env.TOKENHUB_API_KEY,
  baseURL: "https://us-api.tokenhub.com/v1",
})

const result = await client.responses.create({})
console.log(result.output_text)

GPT-6.1 Sol Pro Benchmarks

Index score
Artificial Analysis Intelligence IndexArtificial Analysis broad capability aggregate51

Metrics sourced from Artificial Analysis

GPT-6.1 Sol Pro Guides & Articles

GPT-6.1 Sol Pro Media and Demos

GPT-6.1 Sol family content about the underlying model; these are not Pro-specific evaluations.

X (Twitter)

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Reddit

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YouTube

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GPT-6.1 Sol Pro FAQs

Model selection, tradeoffs, and TokenHub integration.

What is GPT-6.1 Sol Pro?+

OpenRouter’s GPT-6.1 Sol variant using pro reasoning mode, with the same underlying model.

What workloads suit GPT-6.1 Sol Pro?+

Difficult debugging, migration reviews, and complex analyses where more model computation is worth waiting for.

What limitations should I consider?+

Pro mode uses more reasoning tokens and takes longer. Additional computation does not guarantee correctness.

How do I use GPT-6.1 Sol Pro through TokenHub?+

If listed in your account, follow TokenHub’s model ID and Integration instructions; confirm the route enables pro mode.

What about pricing and availability?+

OpenRouter lists this variant. Check TokenHub access and rates; higher reasoning usage can increase total request cost.

How should I choose between the variants?+

Choose Pro for difficult tasks that tolerate delay; use GPT-6.1 Sol for everyday coding and agent workflows.

Ready to use GPT-6.1 Sol Pro?

Use one API key to access GPT-6.1 Sol Pro and more AI models through TokenHub.

Create API key