OpenAI · Reasoning

GPT-6 Sol New

OpenAI says GPT-6 Sol and Luna cost half as much as the GPT-5.6 Sol and Luna models

Provider
OpenAI
Family
GPT
Model type
Reasoning
Official release date
Sep 22, 2026
Release type
New model
Status
Generally available
Previous version
GPT-5.6 Sol
Input
text, image
Output
text
Context window
1,050,000 tokens
Max output
128,000 tokens
API model id
gpt-6-sol
API price (input)
$2 per 1M tokens
API price (output)
$10 per 1M tokens
Price notes
Cached input $0.20. Model page points developers to GPT-6.1 Sol as the newer option.
Consumer apps
—
Developer API
OpenAI API
Free access
None documented
Paid access
—
Availability
—
Licence
proprietary

Main improvements

  • OpenAI says GPT-6 Sol and Luna cost half as much as the GPT-5.6 Sol and Luna models
  • Built for complex coding and agentic workflows

Best use cases

  • Coding
  • Agent workflows

Benchmarks

No benchmark results recorded. We only list scores with a source, benchmark version and date.

Verified Oct 19, 2026 · confidence: high · unresolved: Superseded by GPT-6.1 Sol one week later; no deprecation date announced.

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