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>_ have you seen this? · September 6, 2026

OpenAI quietly launched GPT-6 Astra for developers

Have you seen this? There's a new GPT in town — did you catch the announcement?

OpenAI introduced GPT-6 Astra, its newest model, in a low-key developer-focused announcement rather than a big keynote. Early testers are already running comparisons (including the now-traditional pelican-riding-a-bicycle SVG benchmark across reasoning levels) and noting Astra drops the 'reasoning=none' option other models had.

What this means for your business

If you're building on OpenAI's API, budget time to benchmark Astra against your current model before assuming it's a drop-in upgrade — reasoning behavior and cost may have shifted.

Read the source: Simon Willisonopenaillm-releasedevelopers

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