One prompt to GPT-6 Astra can cost $10. Here's exactly when the 1M context is worth it — and when it's a trap.
This story is from 2026-09-28. It is preserved in the archive; the latest stories are on the live feed.
GPT-6 Astra landed on September 3 with a headline spec everyone repeated: 1.1 million tokens of context. Dump your whole repo in, your whole knowledge base, the entire PDF — no more chunking. Here's the line item nobody put on the slide: input is $10 per million tokens. So filling that window costs…
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- 2026-09-28 18:28 · DEV Community — AI
One prompt to GPT-6 Astra can cost $10. Here's exactly when the 1M context is worth it — and when it's a trap.