GPT-5.5
openai
Score awaiting verification
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.
No tier assessment yet. Models awaiting tier review remain in the catalog. An unassigned tier does not mean weaker capability.
Capabilities & Recommended Uses
Strengths
- •Top-tier code generation across languages
- •Excellent at algorithm design
- •Strong at explaining code concepts
- •Great ecosystem integration (Copilot, Codex)
Best For
- •GitHub Copilot
- •Algorithm design
- •Full-stack development
- •Codex CLI
Weaknesses
- •Expensive for high-volume usage
- •Reasoning variants slower and pricier
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Frequently Asked Questions
What is GPT-5.5's coding score and ranking tier?
GPT-5.5 by openai is rated as Tier Pending on ModelRank with a coding score of Score awaiting verification 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-5.5?
GPT-5.5 features a 1,050,000 token context window. Pricing is $5 per 1M input tokens and $30 per 1M output tokens (OpenRouter quote).
What programming tasks is GPT-5.5 best suited for?
GPT-5.5 is recommended for: GitHub Copilot, Algorithm design, Full-stack development, Codex CLI. Key strengths include: Top-tier code generation across languages, Excellent at algorithm design, Strong at explaining code concepts, Great ecosystem integration (Copilot, Codex).
Try GPT-5.5
Last updated: October 11, 2026