GPT 6.1 Sol
NewGPT-6.1 model for complex coding, tool use and professional work.
Released Sep 29, 2026
₹1,061.50
per 10 lakh output tokens
Input: ₹212.30 per 10 lakh tokens
Billed at provider rates converted at ₹96.5 per US dollar, with 0% markup.
Pricing
Benchmarks
Scores are percentages unless marked as a rating. All benchmarks are measured independently.
94.4%
GPQA Diamond
GPQA Diamond - graduate-level science Q&A
52.9%
HLE
Humanity's Last Exam
54.2%
SciCode
SciCode - scientific code generation
83.0%
Long Context
Long Context Reasoning - reasoning over long inputs
50.2%
FrontierCode
FrontierCode - long-horizon production coding tasks
1759
WebDev Arena
WebDev Arena - head-to-head web-app builds, Elo rating
About GPT 6.1 Sol
GPT-6.1 Sol is OpenAI's model for complex coding, tool-assisted workflows and professional work. It accepts text and image inputs and provides mandatory reasoning with five effort levels, from low through max.
OpenAI presents GPT-6.1 Sol for demanding coding, document analysis and application workflows, with results approaching Astra on several evaluations. The release retains Sol's standard token prices while reducing the cost of repeated cached context.
The announcement emphasizes repository work, complex PDFs and multi-step business automation. OpenAI reports stronger results than earlier Sol across those tasks, alongside improvements in computer use and scientific workflows. These are the lab's measured comparisons, rather than guarantees for every task.
The lab also reports fewer factual mistakes and better adherence to user instructions. Its factuality tests deliberately use difficult prompts flagged for earlier errors, so their rates do not describe ordinary usage. Astra remains OpenAI's recommendation for the hardest scientific research.
What OpenAI announced at launch
- Repository work
- OpenAI reports stronger performance on substantial repository tasks.
- Professional workflows
- Reported improvements cover document-heavy and multi-step professional workflows.
- Research limits
- OpenAI still recommends Astra for its most demanding scientific tasks.
Indian languages
GPT 6.1 Sol answers in 14 Indian languages. Choose a language from the menu beside the message box to receive replies in it.
Frequently Asked Questions
When was GPT 6.1 Sol released?
OpenAI released GPT 6.1 Sol on Sep 29, 2026.
Who built GPT 6.1 Sol?
GPT 6.1 Sol is developed by OpenAI. 99Models AI connects directly to it at the provider's published rate.
How intelligent is GPT 6.1 Sol?
It is ranked 4 of 60 chat models on intelligence, ordered by independent benchmark scores. View its complete scores in the Benchmarks table above.
How much does GPT 6.1 Sol cost?
Usage costs ₹212.30 per million input tokens and ₹1,061.50 per million output tokens, with 0% markup. There is no subscription; you pay only for what you use.
What is GPT 6.1 Sol pricing in US dollars?
The provider charges $2.20 per million input tokens and $11.00 per million output tokens. Rupee rates are converted at ₹96.5 per US dollar.
How long a conversation can GPT 6.1 Sol hold?
Its context window is 10.5 lakh tokens. That is the total volume of text and attached files it can process in a single request.
How does GPT 6.1 Sol rank for value?
It ranks 10 out of 60 models for value. This ranking weighs benchmark intelligence against the actual token cost.
Does GPT 6.1 Sol support reasoning?
Always on. Where reasoning is supported, you can adjust the thinking effort level directly in the message composer.
Which Indian languages does GPT 6.1 Sol support?
It answers in 14 Indian languages. Select your preferred language from the menu beside the message box to receive replies in it.
More models from OpenAI
Catalog updated Oct 3, 2026