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fix: keep brand casing and dotted versions in model display names - #50

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tomzhu1024:model-display-names
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tomzhu1024 wants to merge 4 commits into
yuseferi:mainfrom
tomzhu1024:model-display-names

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@tomzhu1024 tomzhu1024 commented Oct 23, 2026 •

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Summary

This PR improves formatModelName() so that it can parse brand names correctly (e.g., deepseek -> DeepSeek, glm -> GLM) and can tolerate a single leading letter in version number (e.g., v3, k2, m2).

Closes #49

Type of change

  • 🐛 Bug fix (non-breaking)
  • ✨ New feature (non-breaking)
  • 💥 Breaking change
  • 📝 Documentation only
  • 🔧 Internal / refactor

Checklist

  • npm run typecheck passes
  • No new runtime dependencies (or justified in this PR description)
  • README updated if public API or behavior changed
  • CHANGELOG.md updated under ## [Unreleased]
  • Commit messages follow Conventional Commits

How was this tested?

  • Full Vitest suite

Screenshots / logs (optional)

  • N/A

Summary by CodeRabbit

  • Bug Fixes
    • Dotted versions for DeepSeek, Kimi, and MiniMax models now stay joined when formatted.
    • DeepSeek and MiniMax names use their expected capitalization, and GLM displays as an acronym.
  • Tests
    • Added formatting coverage for Gemini, Whisper, Llama, Mistral, DeepSeek, GLM, Kimi, and MiniMax models.

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Files selected for processing: 1
  • test/format-model-name.test.ts
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  • test/format-model-name.test.ts

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Walkthrough

The model-name formatter now recognizes letter-prefixed dotted version pairs and applies specified casing to DeepSeek, MiniMax, and GLM. Documentation and tests include additional model-name examples.

Changes: Model name formatting

Layer / File(s) Summary
Letter-prefixed version pairing
src/utils/format-model-name.ts
The formatter accepts a one- or two-digit version token with an optional leading v, k, or m when joining it to a numeric version component.
Brand casing and model examples
src/utils/format-model-name.ts, test/format-model-name.test.ts
The formatter maps DeepSeek and MiniMax to specified casing and treats GLM as an acronym. Documentation and tests add examples for additional model names.

Priority: Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix · Severity of issue fixed: Low

Suggested reviewers: yuseferi

Merge Risk: Minimal · up to 04998

The requested model names are covered by exact display-name tests, with no identified issue blocking merge.

Pre-merge checks: Passed 5
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed The title clearly and concisely describes the primary changes: preserving brand casing and dotted model versions.
Linked Issues check Passed Issue [#49] requires four exact display names. formatModelName() maps deepseek to DeepSeek, glm to GLM, and minimax to MiniMax. joinTrailingVersionPair() preserves v3.2, k2.5, and …
Out of Scope Changes check Passed The production changes update shared model-name parsing and brand casing. The tests cover the four [#49] examples and related formatter regressions. The reviewed changes do not demonstrate unrelated s…
Docstring Coverage Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Documentation-only edits and deletions within survi…
Full details: Linked Issues check

Explanation

Issue [#49] requires four exact display names. formatModelName() maps deepseek to DeepSeek, glm to GLM, and minimax to MiniMax. joinTrailingVersionPair() preserves v3.2, k2.5, and m2.5. Tests assert all four examples from [#49].

Full details: Out of Scope Changes check

Explanation

The production changes update shared model-name parsing and brand casing. The tests cover the four [#49] examples and related formatter regressions. The reviewed changes do not demonstrate unrelated scope.

Full details: Docstring Coverage

Explanation

Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 3 functions across 2 files.

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Actionable comments posted: 1


ℹ️ Fix comments skipped. No unresolved review comments with fix instructions found.

  • 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/utils/format-model-name.ts:
- Line 22: Update looksLikePrefixedVersionComponent so quantization tokens
matching q followed by digits are excluded from version pairing, while
preserving the existing matching behavior for other tokens. Add a regression
test for llama-3.1-8b-instruct-q4_0 that confirms the version remains merged and
the quantization suffix is not formatted as Q4.0.

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Fix comments skipped. No unresolved review comments with fix instructions found.

@yuseferi yuseferi left a comment

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Thanks for this. The brand casing (DeepSeek, MiniMax, GLM) and the v3.2 / k2.5 / m2.5 joins work well, and all tests pass.

One regression to fix before merging: quantization suffixes

looksLikePrefixedVersionComponent (/^[a-z]?\d{1,2}$/i) also matches q4, q8, q5. The second commit only avoids the problem when the id also contains a digits-only version pair (e.g. llama-3.1-…-q4_0). When it doesn't, a quantization suffix now gets joined with a dot:

id main this PR
mistral-7b-instruct-q4_0 Mistral 7B Instruct Q4 0 Mistral 7B Instruct Q4.0
llama3-8b-q8_0 Llama3 8B Q8 0 Llama3 8B Q8.0
phi-3-mini-q5_1 Phi 3 Mini Q5 1 Phi 3 Mini Q5.1
gemma-2-9b-it-q4_0 Gemma 2 9B IT Q4 0 Gemma 2 9B IT Q4.0

Suggested fix: don't treat q as a version letter, e.g.

function looksLikePrefixedVersionComponent(token: string): boolean {
  // `q` is a quantization prefix (`q4_0`, `q8_0`), not a version letter.
  return /^[a-pr-z]?\d{1,2}$/i.test(token)
}

Please also add a test case with no digits-only pair, such as ['mistral-7b-instruct-q4_0', 'Mistral 7B Instruct Q4 0']. With q excluded, the prefixedMerge fallback might be unnecessary. Check whether it's still needed or can be simplified.

Minor, not blocking

  • deepseek-v2.5-1210 still renders DeepSeek V2 5 1210, because a digits-only token after the pair blocks the join. This already happens on main, so it's fine to leave for a follow-up.
  • ['gpt/dall-e-3', 'Dall E 3'] locks in the current behavior rather than the correct DALL·E 3. It's fine as a test of existing behavior, but maybe add a comment saying it isn't the intended output.

@tomzhu1024
tomzhu1024 requested a review from yuseferi October 30, 2026 02:34
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Model display names are incorrect

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