Artificial Analysis Coding Agent Index: GPT-6 Astra scored 67, roughly equal to Claude Opus 5, Fable 5, and Muse Spark 1.3, but trailing leader Fable 5.1's 70 (Artificial Analysis)

OpenAI released GPT-6 Astra, priced at $10 per million input tokens and $50 per million output tokens, and claims it is a “generational leap” into the AGI era. The model scores 62.7% on the ARC-AGI-3 benchmark with a standard harness and 99.9% with a provider-adapter harness, placing it behind Claude Fable 5.1’s 70 in the Artificial Analysis Coding Agent Index.