Gemini 3.6 Flash beats 3.5 Flash, but lags GPT-5.6 Sol and Terra on cost and quality

haider1 · x · 2026-07-23

The post says Gemini 3.6 Flash is a confusing release: it is a clear upgrade over 3.5 Flash, but still trails GPT-5.6 Sol and Terra on intelligence while costing more and using more tokens.

The attached chart compares DeepSWE Pass@1, average cost per task, and output tokens across effort levels. In the high-effort and xHigh settings, GPT-5.6 Sol and Terra lead on quality-efficiency tradeoffs, while Gemini 3.6 Flash lands below them on both performance and cost efficiency.

Related event: Gemini 3.6 Flash Benchmarks Leak: Faster and Cheaper, But No Intelligence Leap(11 posts)→

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