Developer finds Fable 5.1 costs $0.19 per request vs $1.2 for Astra in Copilot
dikrek · reddit · 2026-09-10
A developer using both OpenAI and Anthropic models in GitHub Copilot asked GitHub to break down per-request costs in his long-context workflow: Fable 5.1 at $0.19 (xhigh, 1M context) versus $1.2 for Astra, which also stalled often in orchestration. Sol ran $0.3 and Opus 5 $0.2. His long-session usage maximizes Fable's cached-input pricing, showing real-world cost can diverge sharply from benchmark-vs-price comparisons.
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