Mastering GPT 6.1 Sol: How to Harness Near-Astra Intelligence Without Breaking Your Infrastructure Budget

OpenAI launched GPT-6.1 Sol at DevDay on September 29, 2026. To access the API, users send POST requests to the OpenAI endpoint using the gpt-6.1-sol model ID. Pricing remains at $2 per million input tokens and $10 per million output tokens, though cached input costs decreased to $0.10. A key breaking change requires migrating requests from none or minimal to low. Migration from gpt-6-sol primarily involves updating the model-ID string within the existing infrastructure.