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@@ -121,6 +121,13 @@ Measured 2026-10-21 against the lane as served (DFlash2 k=7, FLASHINFER, fp8 KV)
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tool-call parsing is `--tool-call-parser beam` with
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tool-call parsing is `--tool-call-parser beam` with
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`--enable-auto-tool-choice`; `--reasoning-parser beam` splits the channels.
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`--enable-auto-tool-choice`; `--reasoning-parser beam` splits the channels.
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+### Real-workload shape (measured with prefix caching, the V1 default)
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+
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+Multi-turn on a 4.7K-token document: **TTFT 0.41 s / 0.51 s** (turn 1 / turn 2 on
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+the same prefix — the prefill is served from the prefix cache; at 2.4K tok/s
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+uncached it would cost ~2 s), 11.4 s for 580 output tokens, 6.7 s for 384. So a
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+real agent turn on Beam costs ~0.4 s to first token plus ~30 ms/token.
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+
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### Where it stands versus the prod lane
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### Where it stands versus the prod lane
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| | Beam NVFP4 4x (spec) | 1017 SGLang 4x (prod) |
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| | Beam NVFP4 4x (spec) | 1017 SGLang 4x (prod) |
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