BBuf/sglang-intern-s1-optimization
skills/model-optimization/sglang/sglang-intern-s1-optimization/SKILL.md
PR-backed optimization manual for Intern-S1 in SGLang. Use when an engineer needs to audit, debug, extend, or document Intern-S1 language and video-aware serving, processor integration, and tool/reasoning parser behavior.
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SKILL.md
- name:
- sglang-intern-s1-optimization
- description:
- PR-backed optimization manual for Intern-S1 in SGLang. Use when an engineer needs to audit, debug, extend, or document Intern-S1 language and video-aware serving, processor integration, and tool/reasoning parser behavior.
SGLang Intern-S1 Optimization
Overview
This skill covers Intern-S1 language and video-aware serving, processor integration, and tool/reasoning parser behavior.
Evidence snapshot:
- SGLang mainline checked around
c122d343adb969cd9bbd1af2ca86727a11be3845 - sgl-cookbook checked around
e88b0fd8ac5b1caa6eb42766035029220053369b - Canonical PR notes:
references/pr-history.md - History mirrors:
model-pr-optimization-history/sglang/intern-s1/README.zh.mdandREADME.en.md
Non-Negotiable Evidence Rule
Use skills/model-optimization/model-pr-diff-dossier/SKILL.md as the production bar.
Every PR cited for this family must be based on diff reading, not only PR titles.
Runtime Surfaces
sglang/python/sglang/srt/models/interns1.pysglang/python/sglang/srt/models/internvl.py
Current Main Summary
- Intern-S1 leans heavily on shared InternVL processor code in SGLang.
- Most regressions come from processor compatibility, parser behavior, and video-aware serving rather than the text stack alone.
Key Landed PRs
- #9381
InternS1 image token updates in InternVL processor: Aligned the shared processor with Intern-S1 image semantics. - #12367
Fix Intern-S1 accuracy and/generateinput_ids support: Closed early correctness gaps. - #14866
Add tool calling and reasoning parser support for Intern-S1: Added parser support that cookbook usage depends on. - #17040
Support InternS1 text_config in InternVL processor: Improved sub-config compatibility in shared processors.
Validation Lanes
- Startup on the cookbook checkpoint or example route.
- Re-run the parser, quantization, or multimodal lane that matches this family.
- Re-check registered or manual tests after touching loader or processor code.
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