OpenAI introduced GPT-6.1 Sol on September 29, 2026 during DevDay 2026. The official announcement describes it as delivering near-Astra intelligence for coding, computer use, and professional work, at one-fifth of GPT-6 Astra's standard API input and output token prices. That is a relative comparison, not a specific dollar figure; the announcement itself does not state Sol's or Astra's exact per-token rates, so check OpenAI's current pricing page for the numbers that apply to your account and mode.
"Near-Astra intelligence" is also a qualitative claim. The announcement does not publish a benchmark score gap between GPT-6.1 Sol and GPT-6 Astra, so treat it as a starting point rather than a guarantee for your specific workload.
Before switching, pick one recurring task you already run on your current model. Keep the input and the acceptance bar identical, then run it again on GPT-6.1 Sol. Record the total charge, any retries, and the time you spend checking the output. Compare that total against your current setup rather than the headline ratio alone.