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@roomote roomote bot commented Sep 1, 2025

Summary

This PR fixes the TabbyApi/ExLlamaV2 crash issue introduced after v3.25.20 where the temperature parameter was being passed as None/undefined instead of a valid float value.

Problem

After commit 090737c (#7188), the temperature parameter was omitted when not explicitly set to allow backend services to use their configured defaults. However, some backends like TabbyApi/ExLlamaV2 expect a temperature value and crash when receiving None.

Solution

  • Modified base-openai-compatible-provider.ts to always include temperature with fallback to defaultTemperature
  • Modified openai.ts to always include temperature with fallback to 0 (or DEEP_SEEK_DEFAULT_TEMPERATURE for DeepSeek reasoner models)
  • Updated tests to expect temperature to always be included with appropriate defaults

Testing

  • ✅ All existing tests pass (82 tests)
  • ✅ Updated tests verify temperature is always included
  • ✅ Maintains provider-specific defaults (OpenAI: 0, Groq: 0.5, Roo: 0.7, DeepSeek Reasoner: 0.6)

Impact

  • Fixes TabbyApi/ExLlamaV2 crashes when temperature is not explicitly set
  • Maintains backward compatibility for users who explicitly set temperature values
  • Preserves provider-specific default temperatures

Fixes #7581


Important

Ensure temperature parameter is always included with defaults in OpenAI-compatible providers to prevent crashes.

  • Behavior:
    • Always include temperature parameter in base-openai-compatible-provider.ts and openai.ts to prevent crashes in TabbyApi/ExLlamaV2.
    • Use defaultTemperature or provider-specific defaults (OpenAI: 0, Groq: 0.5, Roo: 0.7, DeepSeek Reasoner: 0.6) if not explicitly set.
  • Testing:
    • Updated tests in groq.spec.ts, openai.spec.ts, and roo.spec.ts to verify temperature inclusion with appropriate defaults.
    • All existing tests pass, ensuring backward compatibility.
  • Impact:
    • Fixes crashes in TabbyApi/ExLlamaV2 when temperature is not set.
    • Maintains backward compatibility for users who set temperature values explicitly.

This description was created by Ellipsis for 8d2f767. You can customize this summary. It will automatically update as commits are pushed.

…ders

- Modified base-openai-compatible-provider.ts to always include temperature with fallback to defaultTemperature
- Modified openai.ts to always include temperature with fallback to 0 (or DEEP_SEEK_DEFAULT_TEMPERATURE for DeepSeek reasoner models)
- Updated tests to expect temperature to always be included with appropriate defaults
- This fixes TabbyApi/ExLlamaV2 crashes when temperature is undefined/null

Fixes #7581
@roomote roomote bot requested review from cte, jr and mrubens as code owners September 1, 2025 17:21
@dosubot dosubot bot added size:M This PR changes 30-99 lines, ignoring generated files. bug Something isn't working labels Sep 1, 2025
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I reviewed my own code and found issues I didn't know I created.

params.temperature = this.options.modelTemperature
// Always include temperature to prevent TabbyApi/ExLlamaV2 crashes
// Use explicitly set temperature, or fall back to defaultTemperature (which defaults to 0)
temperature: this.options.modelTemperature ?? this.defaultTemperature,
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Good implementation of the temperature fallback chain! The comment clearly explains why this is needed. However, I noticed the completePrompt method in this same file (line 117-134) still doesn't include the temperature parameter - this could still cause TabbyApi/ExLlamaV2 crashes when using the completion endpoint.

requestOptions.temperature = DEEP_SEEK_DEFAULT_TEMPERATURE
// Always include temperature to prevent TabbyApi/ExLlamaV2 crashes
// Use explicitly set temperature, or DeepSeek default for reasoner models, or fall back to 0
temperature: this.options.modelTemperature ?? (deepseekReasoner ? DEEP_SEEK_DEFAULT_TEMPERATURE : 0),
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Good fix for the streaming case! This ensures temperature is always included with appropriate defaults.

: [systemMessage, ...convertToOpenAiMessages(messages)],
// Always include temperature to prevent TabbyApi/ExLlamaV2 crashes
// Use explicitly set temperature, or DeepSeek default for reasoner models, or fall back to 0
temperature: this.options.modelTemperature ?? (deepseekReasoner ? DEEP_SEEK_DEFAULT_TEMPERATURE : 0),
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Excellent - non-streaming mode also properly includes temperature now. The fallback chain (user setting -> DeepSeek default -> 0) is well thought out.

model: model.id,
messages: [{ role: "user", content: prompt }],
// Always include temperature to prevent TabbyApi/ExLlamaV2 crashes
temperature: this.options.modelTemperature ?? 0,
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Good catch on the completePrompt method! This ensures consistency across all API calls.

@hannesrudolph hannesrudolph added the Issue/PR - Triage New issue. Needs quick review to confirm validity and assign labels. label Sep 1, 2025
@daniel-lxs daniel-lxs moved this from Triage to PR [Needs Prelim Review] in Roo Code Roadmap Sep 2, 2025
@hannesrudolph hannesrudolph added PR - Needs Preliminary Review and removed Issue/PR - Triage New issue. Needs quick review to confirm validity and assign labels. labels Sep 2, 2025
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Closing in favor of #7594

@daniel-lxs daniel-lxs closed this Sep 2, 2025
@github-project-automation github-project-automation bot moved this from New to Done in Roo Code Roadmap Sep 2, 2025
@github-project-automation github-project-automation bot moved this from PR [Needs Prelim Review] to Done in Roo Code Roadmap Sep 2, 2025
@daniel-lxs daniel-lxs deleted the fix/tabbyapi-temperature-crash branch September 2, 2025 21:41
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Roo crashes TabbyApi/Exlamma after v3.25.20

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