GPT-5.6 Sol — reviews, specs & pricing
OpenAI's frontier model for complex professional work. 1.05M context, 128k max output, knowledge cutoff Feb 16 2026. $5/$30 per 1M tokens (short context).
Summary
GPT-5.6 Sol represents OpenAI's absolute pinnacle of machine intelligence, specifically engineered to tackle ultra-complex reasoning challenges and autonomous agentic workflows. By prioritizing deep cognitive processing over raw speed, it excels at decomposing multi-step problems that leave lesser models stalled. While it carries a premium price tag and operates with higher latency, its unmatched analytical capabilities make it the definitive choice for enterprise-level decision making and advanced software engineering.
Sample use case
A pharmaceutical research enterprise deploys GPT-5.6 Sol to orchestrate autonomous multi-agent pipelines for drug discovery. The model acts as a master coordinator, analyzing vast biomedical datasets to identify target proteins, writing and self-correcting python code to run molecular simulations, and autonomously generating comprehensive regulatory compliance documentation.
Specifications
- Provider: openai
- License: closed
- Context: 1050k tokens
- Input price: $5/M tok
- Output price: $30/M tok
Pros
- Unmatched logical reasoning capabilities
- Superb autonomous agent coordination
- Flawless code generation and debugging
- Excels at extremely complex multi-step tasks
Cons
- Significantly higher latency
- Premium, high-cost pricing tier
- Inefficient for simple, conversational queries
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