Details
- OpenAI launched GPT-6.1 Sol, an upgraded model designed for coding, computer use, and complex professional work.
- The company says Sol approaches GPT-6 Astra performance on several benchmarks while costing substantially less.
- API pricing is $2 per million input tokens, $0.10 per million cached input tokens, and $10 per million output tokens.
- Cached input costs 95% less than standard input and 50% less than GPT-6 Sol, helping applications reuse context more economically.
- OpenAI reports improvements over GPT-6 Sol in programming, debugging, document understanding, and multi-step workflows.
- Alignment evaluations show better transparency about limitations and more reliable adherence to user intent and safety constraints.
- GPT-6.1 Sol is available immediately to Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex.
- Developers can access the model through the OpenAI API using the model name gpt-6.1-sol; it is not yet available in ChatGPT’s standard chat experience.
Impact
GPT-6.1 Sol pushes the market toward lower-cost agentic workloads by bringing capabilities closer to a premium model at materially reduced token prices. The strongest operational effect is likely on coding agents and applications that repeatedly reuse large context, where caching can reduce expenses further. Its positioning also gives OpenAI a broader performance-cost tier between lightweight models and GPT-6 Astra, increasing pressure on competing providers to improve efficiency rather than rely only on larger models.
