OpenAI's new flagship: far fewer made-up answers and a third of the tokens on coding-agent work, but the same overall score as GPT-5.6 Sol — at 2.5 times the price.
Compared with GPT-5.6 Sol · the model it replaces
Invents facts on half as many trick questions
AA hallucination rate — how often it makes up an answer instead of admitting it doesn't know
51%
▲ down from 92% · 41 points fewer
Uses about a third of the tokens on coding-agent tasks
AA Coding Agent Index, max effort — text consumed per task
~⅓ tokens
▲ vs GPT-5.6 Sol · 70% more token-efficient
Costs 2.5 times more to run than Sol
Price per 1M tokens — what developers pay, input / output
$10 / $50
up from $4 / $20 · 2.5× the price
GPT-6 Astra is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
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