GPT-6 Astra makes major gains in the Artificial Analysis Coding Agent Index
GPT-6 Astra has shown significant performance gains in the Artificial Analysis Coding Agent Index, matching top-tier models like Fable 5 at a lower cost. While it is more token-efficient than its predecessor, the model's overall pricing has increased, impacting its cost-to-performance ratio.
Why it matters
As AI models become more efficient, the trade-off between computational token usage and direct pricing remains a critical factor for enterprise adoption.
Artificial Analysis K Artificial Analysis Models Coding Agents Speech, Image, Video Inference Leaderboards About AI Trends Arenas K All articles September 3, 2026
GPT-6 Astra makes significant gains in the Artificial Analysis Coding Agent Index, scoring equal to Fable 5 at lower cost. In the Intelligence Index, it uses fewer tokens than GPT-5.6 Sol for similar performance, but this is outweighed by higher prices
Pricing is 2.5x GPT-5.6 Sol’s current prices across the board, up from $4/$20 to $10/$50 per million input/output tokens, with the same 90% discount for cache reads and 25% premium for cache writes.
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