GPT-5.6 Sol
openai
Cross-checked
DeepSeek V4 Flash 0731 = 100. The index reflects two shared tests, not capability multiples or statistically established gaps. Results reflect particular model configurations. Agent harnesses, reasoning effort, tools, budgets and tasks may differ. Close indices do not establish superiority. B describes a relative position in this selected group, not an inability to code.
Capabilities & Recommended Uses
Strengths
- •Top-tier code generation across all languages
- •Excellent algorithm design and implementation
- •Outstanding at explaining code concepts
- •Great ecosystem integration (Copilot, Codex)
Best For
- •GitHub Copilot
- •Algorithm design
- •Full-stack development
- •Codex CLI
Weaknesses
- •Pricier than lightweight alternatives
- •Reasoning depth below the terra variant
Benchmark evidence and ranking method · GPT-5.6 Sol
Cross-checked
Terminal-Bench 4.0 · Codex · max: 37.27% · 95% CI ± 3.78%
Artificial Analysis · GPT-5.6 Sol (max)
Test configuration: max
Terminal-Bench 2.1: 88.01% · SciCode: 57.06%
LiveBench · 2026-06-25 · gpt-5.6-sol-max
Coding: 83.94% · Agentic Coding: 56.21%
ModelRank assigns editorial tiers using public coding evidence, not automatic index thresholds or statistically proven classes. Price, speed, context size and sponsorship do not affect tiers.
DeepSeek V4 Flash 0731 = 100. The index reflects two shared tests, not capability multiples or statistically established gaps.
Results reflect particular model configurations. Agent harnesses, reasoning effort, tools, budgets and tasks may differ. Close indices do not establish superiority. B describes a relative position in this selected group, not an inability to code.
Data checked: 2026-09-10. Snapshot date is the retrieval date, not necessarily the evaluation date.
Compare with Alternatives
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Frequently Asked Questions
What is GPT-5.6 Sol's coding score and ranking tier?
GPT-5.6 Sol by openai is rated as Tier S on ModelRank with a coding score of 112.62 (Reference baseline = 100) as a reference index derived from public benchmark evidence. Tiers are editorial assessments; the index does not establish real-world capability differences.
What is the API pricing and context window for GPT-5.6 Sol?
GPT-5.6 Sol features a 1,050,000 token context window. Pricing is $2 per 1M input tokens and $10 per 1M output tokens (OpenRouter quote).
What programming tasks is GPT-5.6 Sol best suited for?
GPT-5.6 Sol is recommended for: GitHub Copilot, Algorithm design, Full-stack development, Codex CLI. Key strengths include: Top-tier code generation across all languages, Excellent algorithm design and implementation, Outstanding at explaining code concepts, Great ecosystem integration (Copilot, Codex).
Try GPT-5.6 Sol
Last updated: October 11, 2026