GPT-6 Astra leads priced models on Terminal-Bench 4.0 at 57.7%

Merge @merge_apiOriginally posted 2026.09.17

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GPT-6 Astra leads Terminal-Bench 4.0 among priced models at 57.7%, with Claude Fable 5.1 close behind at 55.8%. Claude Opus 5 reaches 51.8% at half the output price. With Merge Gateway, you can route terminal tasks to the model that fits the performance and cost target you set.