# GPT-6.1 Sol

> OpenAI's reasoning model for complex coding, computer use and professional work.

## Key facts

- Model author: OpenAI
- Input: $2.00 per 1M tokens (starting tier)
- Output: $10.00 per 1M tokens (starting tier)
- Cached input: $0.10 per 1M tokens
- Context window: 1,050,000 tokens
- Maximum output: 128,000 tokens
- Input modalities: image, text
- Output modalities: text
- Capabilities: reasoning, structured_output, tools, vision
- Released: 2026-09-29
- Knowledge cutoff: Apr 30, 2026
- Model IDs: `jd/gpt-6.1-sol`, `openai/gpt-6.1-sol`
- Model page: https://www.realrelay.ai/model/openai/gpt-6.1-sol

## Overview

GPT-6.1 Sol is a reasoning model from OpenAI built for complex coding, computer use and professional work. OpenAI suggests testing it on your own tasks to weigh output quality against price. It reads text and image input, returns text, and supports tool calling and structured output with a 1.05M-token context window.

It has a 1.05M-token context window and can generate up to 128,000 output tokens. It accepts text and image input and returns text. Its knowledge cutoff is April 30, 2026, and it was released on September 29, 2026.

## Capabilities

GPT-6.1 Sol supports reasoning, tool calling, structured output and image understanding. It accepts text and image input and returns text.

OpenAI lists computer use among the work it is built for, which pairs image understanding with tool calling so the model can read an interface and decide what to do next.

## Pricing

GPT-6.1 Sol is priced from $2.00 per 1M input tokens and from $10.00 per 1M output tokens. Cached input reads are priced from $0.10 per 1M tokens.

GPT-6.1 Sol is available through RealRelay's OpenAI-compatible API.

## Use cases

Use GPT-6.1 Sol for coding agents that read large repositories, plan changes and call tools to edit and test code. The 1.05M-token window keeps a whole codebase and its history in one request.

For professional work it can review long documents, contracts or reports together with screenshots and charts, and return structured output that downstream systems can parse.

## Call it

OpenAI-compatible chat completions:

```bash
curl https://www.realrelay.ai/v1/chat/completions \
  -H "Authorization: Bearer $REALRELAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "openai/gpt-6.1-sol", "messages": [{"role": "user", "content": "Hello"}]}'
```

## FAQ

### What is GPT-6.1 Sol?

GPT-6.1 Sol is an OpenAI reasoning model for complex coding, computer use and professional work, with a 1.05M-token context window.

### How much does GPT-6.1 Sol cost?

GPT-6.1 Sol is priced from $2.00 per 1M input tokens and from $10.00 per 1M output tokens. Cached input reads are priced from $0.10 per 1M tokens.

### What is the context window and maximum output of GPT-6.1 Sol?

GPT-6.1 Sol has a 1.05M-token context window and can generate up to 128,000 output tokens.

### What inputs and outputs does GPT-6.1 Sol support?

GPT-6.1 Sol accepts text and image input and returns text.

### What capabilities does GPT-6.1 Sol support?

GPT-6.1 Sol supports reasoning, tool calling, structured output and image understanding.

### When was GPT-6.1 Sol released?

GPT-6.1 Sol was released on September 29, 2026.

### How do I call GPT-6.1 Sol via the API?

Call GPT-6.1 Sol through RealRelay's OpenAI-compatible API using the model ID openai/gpt-6.1-sol.