OpenAI: GPT-6.1 Sol Pro

OpenAI · 1050K token context · multimodal

Pricing: $1.35 per 1M input tokens, $6.75 per 1M output tokens

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...

Pricing

$1.35 per 1M input tokens and $6.75 per 1M output tokens. Billing is per token: input tokens are charged at the input rate and output tokens at the output rate, from one llmka.dev balance.

Prices checked 2026-11-04

Context and limits

The context window is 1,050,000 tokens (1050K).

The maximum output is 128,000 tokens.

When to use OpenAI: GPT-6.1 Sol Pro

OpenAI: GPT-6.1 Sol Pro (model ID `gpt-6.1-sol-pro`) takes file, image, text input and returns text output.

Supported features in the catalog: function calling (tools), streamed responses over SSE, JSON-schema structured output.

Use OpenAI: GPT-6.1 Sol Pro for text generation and chat.

FAQ

How much does OpenAI: GPT-6.1 Sol Pro cost?

$1.35 per 1M input tokens and $6.75 per 1M output tokens. Billing is per token: input tokens are charged at the input rate and output tokens at the output rate, from one llmka.dev balance.

What is the context window and output limit of OpenAI: GPT-6.1 Sol Pro?

The context window is 1,050,000 tokens (1050K). The maximum output is 128,000 tokens.

How do I get access to OpenAI: GPT-6.1 Sol Pro?

Create an API key in the llmka.dev dashboard and send requests to model "gpt-6.1-sol-pro" at https://api.llmka.dev/v1. The endpoint is OpenAI-compatible. One key and one balance cover all models on the gateway.

Links

All models and prices · API documentation · Quick start

Available through the llmka.dev gateway: OpenAI- and Anthropic-compatible endpoints, one key, USDT top-up.