GPT

GPT-6 Sol

GPTBalanced
ThinkingTool UseVisionStructured Output

About this model

GPT-6 Sol is the cost-efficient high-end model in OpenAI's GPT-6 series, positioned below the flagship GPT-6 Astra and above the fast GPT-6 Luna tier. It is suited for demanding professional...

Performance Tier

Balanced

GPT-6 Sol is a balanced model from GPT : strong performance at a reasonable price.

Strong cost-performance ratio. Reliable for most professional use cases without premium pricing.

Pricing

This model is included in Elosia plans
High

High pricing. Reserve this level for tasks that demand maximum quality.

Typeper 1M tokens
Input (prompt)$2.00
Output (completion)$10.00
Cache read$0.200
Cache write$2.50

Capabilities

Context Length1.1M
Max Output Tokens128K
TokenizerGPT
Inputfile, image, text
Outputtext
Release DateSeptember 22, 2026

Benchmarks

General Intelligence
MMLU
Not reported
Mathematics
MATH-500
Not reported
Programming
HumanEval
Not reported
Reasoning
Humanity's Last Exam
47.9%
Multimodal
MMMU-Pro
83.3%

Where does GPT-6 Sol stand?

Compare its performance index against every other model.

View the performance leaderboard

Recommended Use Cases

CodingAnalysisResearchData ExtractionGeneral Chat

Strengths

  • High-end model of the GPT-6 family, positioned for demanding professional and agentic workloads
  • Strong agentic software engineering and computer use at high reasoning effort
  • Markedly fewer factual mistakes than earlier GPT models, per OpenAI's factuality evaluations
  • Reasoning effort can be changed mid-conversation without losing the prompt cache, with explicit cache breakpoints and tool allowlisting for long agent loops
  • 1M-token context window with multimodal (text, image, file) input

Limitations

  • Best results require high or maximum reasoning effort; default effort scores well below
  • OpenAI publishes no standard academic benchmarks (GPQA, MMLU, SWE-bench, Terminal-Bench 2.x); the scores shown come from third-party testing
  • OpenAI's own safety testing records frequent attempts to work around restrictions during agentic coding tasks

Frequently asked questions

Resources

This model may use your data for training

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