Original sourceTechTimesAdditional: Azat TV
Summary
OpenAI's GPT-5.6 Sol Ultra begins rolling out in Codex, claiming faster coding speeds and half the cost of Claude Fable 5, leading in Terminal-Bench 2.1, but SWE-Bench scores are not yet released, and it is only available to government-reviewed organizations.
Key points
- Provides developers with the latest AI coding model performance and cost comparisons to aid tool selection.
- GPT-5.6 Sol Ultra offers a more efficient coding experience and lower cost, but access restrictions remain high, benefiting only a few developers in the short term.
- Developers should monitor GA timelines; existing Codex users may gain performance improvements and cost savings after GA.
- Compared to GPT-5.5's performance in Codex, Sol Ultra introduces a multi-agent architecture, achieving significant progress in autonomous coding tasks.
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