Model by OpenAI

GPT-6.1 Sol

GPT-6.1 Sol is OpenAI's upgrade to GPT-6 Sol.

Checked 2026-11-05

GPT-6.1 Sol is OpenAI's upgrade to GPT-6 Sol. OpenRouter places it below the flagship GPT-6 Astra in the GPT-6 series and lists it for agentic coding, computer use and document-heavy professional work. It appeared on 29 September 2026. The context window is 1,050,000 tokens. It takes text, images and files and returns text only. On 5 November 2026 OpenRouter shows $2 per million input tokens and $10 per million output. That is the same rate as GPT-6 Sol on the same list, so the upgrade comes without a price rise. It is a closed model with no published weights. The practical limit is that it is not the top tier: OpenRouter puts Astra above it, so the hardest problems may still push you upward. For everyday agent and coding work it is the sensible middle. You reach it through the OpenAI API, Azure or OpenRouter. Figures come from OpenRouter's public model list and its model page. We have not run it, and we do not repeat vendor benchmark claims here.

Mentioned here

  • GPT-6 Sol

    GPT-6 Sol is the middle model of OpenAI's GPT-6 family, released 2026-09-22.

    • Closed

    OpenAI, 1.1M context, $2 in / 1M

  • GPT-6 Astra

    GPT-6 Astra is the top model in OpenAI's GPT-6 family, released 2026-09-04.

    • Closed

    OpenAI, 1.1M context, $10 in / 1M

  • GPT-6 Luna

    GPT-6 Luna is the smallest and cheapest model in OpenAI's GPT-6 family, released 2026-09-22.

    • Closed

    OpenAI, 1.1M context, $0.10 in / 1M

  • GPT-6.1 Terra

    GPT-6.1 Terra is a newer OpenAI model released 2026-10-26, priced between Luna and Sol.

    • Closed

    OpenAI, 1.1M context, $1 in / 1M

  • OpenAI API

    OpenAI's API bills per token.

    • Model / inference API
    • OpenAI compatible

  • OpenRouter

    OpenRouter routes more than 600 models through one API key.

    • Model gateway (router)
    • OpenAI compatible

Questions

What is the context window of GPT-6.1 Sol?

1,050,000 tokens, with up to 128,000 tokens of output.

How much does GPT-6.1 Sol cost?

$2 per million input tokens and $10 per million output tokens, checked 31 October 2026.

Can I run GPT-6.1 Sol on my own hardware?

No. The weights are not published, so you use it through the maker's API or a hosting provider.

Who makes GPT-6.1 Sol?

OpenAI makes it, and released it on 29 September 2026.

Reviews

Loading reviews…

Write a review

Your rating

Up to 1000 characters. Stars alone are enough.

Similar

  • GPT-4.1

    GPT-4.1 is OpenAI's April 2025 non-reasoning model, built for instruction following and long-context code work, and it is now deprecated.

    • Closed

    OpenAI, 1M context, $2 in / 1M

  • o3

    o3 is OpenAI's April 2025 reasoning model, and it is now deprecated, so it suits only code that still calls it.

    • Closed

    OpenAI, 200K context, $2 in / 1M

  • gpt-oss-20b

    gpt-oss-20b is OpenAI's smaller open-weights model, suited to running a reasoning model on your own machine or paying very little through an API.

    • Open weights

    OpenAI, 131K context, $0.03 in / 1M

  • GPT-5.4 Nano

    GPT-5.4 Nano was OpenAI's cheapest GPT-5.4 model, built for speed-critical, high-volume jobs, and it is now deprecated.

    • Closed

    OpenAI, 400K context, $0.20 in / 1M

  • GPT-5.4 Mini

    GPT-5.4 Mini is OpenAI's smaller GPT-5.4 model, aimed at high-throughput coding and reasoning work where the full model costs too much.

    • Closed

    OpenAI, 400K context, $0.75 in / 1M

  • GPT-5.4

    GPT-5.4 is an earlier OpenAI frontier model, and it suits teams already on the OpenAI API who need a very long context for coding and document work.

    • Closed

    OpenAI, 1.1M context, $2.50 in / 1M