GPT-6 Astra vs Opus 5.5: benchmark score against token cost
On the Artificial Analysis Index, Opus 5.5 leads with 58 points to Astra's 53, but it uses about 119k output tokens per task versus Astra's 27k and costs more per token.
comparing AI models by benchmark score alone in 2026 ain't feasible anymore by raw intelligence, Opus 5.5 leads the Artificial Analysis Index at 58 meanwhile GPT-6 Astra scores 53 but Opus uses ~119k output tokens per task compared to ~27k for Astra, that's 4.4x the output for a 5-point lead Opus 5.5 $4/$20 vs GPT-6 Astra $10/$50 per 1M tokens when it comes to model efficiency: • MiMo-V2.6 Pro scores 46 at $0.435/$0.87 ~ 1.02T parameters, with Xiaomi reporting $2.62M for its RL run • Grok 4.7 scores 46 at $2/$6, but generated ~240M tokens across the Artificial Analysis benchmark runs per task on the index that works out to $3.74 for Grok 4.7 and $0.13 for MiMo elon musk said he's "cautiously optimistic" that SpaceX will have a Fable/GPT-6 level model in 2 to 3 months.