Vision preprocessing token limits and latency fixes

NousResearch/hermes-agent · cluster 10809 · agent

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Nothing open on GitHub. Fix merged in #75253. Check it covers your case.

The short answer

0open issues
0open PRs
10items grouped
Known?
Yes. 10 related items grouped here, 3 issues already closed.
Fix event
A fix was merged to main in PR #75253. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this partially resolved, deciding PR #75253. That is separate from the fix event.
Still open
Nothing open on GitHub.

These issues and PRs address overly verbose vision preprocessing output, hardcoded max_tokens limits in auxiliary vision calls, and related latency problems. Work spans making max_tokens configurable via config.yaml, keeping preprocessing prompts concise, and routing improvements for multimodal models.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #75253 fix(vision): stop capping aux vision output with hardcoded max_tokens

    merged to main

    files: tests/tools/test_browser_console.py, tests/tools/test_video_analyze.py, tests/tools/test_vision_tools.py, tools/browser_tool.py, tools/vision_tools.py

  • #81269 fix(gateway): keep auto vision preprocess concise (salvage #10852)

    merged to main

    files: contributors/emails/[redacted:email], gateway/run.py, tests/gateway/test_vision_preprocess.py

5 PRs closed without merging

From the close comments: done elsewhere 3 · duplicate 1 · merged via another change 1

  • #10852 fix(gateway): keep auto vision preprocess concise · merged via another change → #81269, #10809, #75253
  • #28999 fix(gateway): retry auto-vision on transient failure (#28972) · done elsewhere → fb403a3, #56889
  • #29600 fix(vision): honor auxiliary.vision.max_tokens from config in vision_tools · done elsewhere
  • #38004 fix: respect auxiliary.vision.max_tokens from config.yaml (#29590) · done elsewhere → db472f5
  • #61187 Cap gateway vision preprocessing output · duplicate → #10852, #10809
Closed issues · 3
  • Closed#10809Default vision pre-process prompt generates overly long descriptions (~2000 chars), significantly slowing down image-bearing requests on local models
  • Closed#29590[Bug/Enhancement] Hardcoded max_tokens and overly verbose prompt in vision_tools.py causes severe latency for reasoning models
  • Closed#34087Make max_tokens configurable for aux vision calls
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At a glance

Subsystem
agent
Merged PRs
#75253, #81269
Closed issues
3
Attempts
5 PRs closed without merging
Fix link checked
15 Aug 2026

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