Released07/2026
Speed0 tokens/s
Time to first token0.00s
Input price$4/1M
Output price$20/1M
Rankings
Review
This model is a top choice for coding and reasoning—optimized for engineers, analysts, and researchers requiring high precision. However, if your workload primarily involves orchestrating agents or automating workflows, consider an agent-specialized model first.
Strengths
- Top-tier coding: handles complex code, optimization, and production-ready refactoring
- Strong reasoning: solves hard logic problems, multi-step analysis, and detailed planning
- In-depth conversation: strong context adherence, maintains state across long conversations
Weaknesses
- Weak AI agent capabilities: struggles with automated task delegation; workflow orchestration lacks fluidity
- Poor fit for agentic tasks: limited loop thinking, complex planning, and agent error recovery
- Potentially high cost: top-tier model pricing, and the context window may be limited
Use cases
Production-grade coding: backend, data pipelines, complex system designAnalysis & reasoning: ML research, strategy consulting, system logic auditingSenior engineer support: pair programming, deep code reviews, complex problem-solving
Guides & videos
Access ChatGPT at chat.openai.com and select GPT-5.6 Sol from the top model selector. This model is optimized for coding, scientific research, and cybersecurity—use Ultra Mode for complex tasks so the model can break them down into sub-tasks. Available exclusively to ChatGPT Plus/Pro/Business/Enterprise accounts; to reduce costs, choose Terra or Luna instead of Sol.