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fix: always include temperature parameter for OpenAI compatible providers #7582

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fix: always include temperature parameter for OpenAI compatible providers #7582

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7 changes: 2 additions & 5 deletions src/api/providers/__tests__/groq.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -195,7 +195,7 @@ describe("GroqHandler", () => {
)
})

it("should omit temperature when modelTemperature is undefined", async () => {
it("should include default temperature of 0.5 when modelTemperature is undefined", async () => {
const modelId: GroqModelId = "llama-3.1-8b-instant"
const handlerWithoutTemp = new GroqHandler({
apiModelId: modelId,
Expand Down Expand Up @@ -224,13 +224,10 @@ describe("GroqHandler", () => {
model: modelId,
messages: expect.arrayContaining([{ role: "system", content: systemPrompt }]),
stream: true,
temperature: 0.5, // Should include Groq's default temperature of 0.5
}),
undefined,
)

// Verify temperature is NOT included
const callArgs = mockCreate.mock.calls[0][0]
expect(callArgs).not.toHaveProperty("temperature")
})

it("should include temperature when modelTemperature is explicitly set", async () => {
Expand Down
13 changes: 8 additions & 5 deletions src/api/providers/__tests__/openai.spec.ts
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Expand Up @@ -316,20 +316,20 @@ describe("OpenAiHandler", () => {
expect(callArgs.max_completion_tokens).toBe(4096)
})

it("should omit temperature when modelTemperature is undefined", async () => {
it("should include default temperature of 0 when modelTemperature is undefined", async () => {
const optionsWithoutTemperature: ApiHandlerOptions = {
...mockOptions,
// modelTemperature is not set, should not include temperature
// modelTemperature is not set, should include default temperature of 0
}
const handlerWithoutTemperature = new OpenAiHandler(optionsWithoutTemperature)
const stream = handlerWithoutTemperature.createMessage(systemPrompt, messages)
// Consume the stream to trigger the API call
for await (const _chunk of stream) {
}
// Assert the mockCreate was called without temperature
// Assert the mockCreate was called with default temperature of 0
expect(mockCreate).toHaveBeenCalled()
const callArgs = mockCreate.mock.calls[0][0]
expect(callArgs).not.toHaveProperty("temperature")
expect(callArgs.temperature).toBe(0)
})

it("should include temperature when modelTemperature is explicitly set to 0", async () => {
Expand Down Expand Up @@ -431,6 +431,7 @@ describe("OpenAiHandler", () => {
{
model: mockOptions.openAiModelId,
messages: [{ role: "user", content: "Test prompt" }],
temperature: 0, // temperature should always be included with default of 0
},
{},
)
Expand Down Expand Up @@ -515,7 +516,7 @@ describe("OpenAiHandler", () => {
],
stream: true,
stream_options: { include_usage: true },
// temperature should be omitted when not set
temperature: 0, // temperature should always be included with default of 0
},
{ path: "/models/chat/completions" },
)
Expand Down Expand Up @@ -562,6 +563,7 @@ describe("OpenAiHandler", () => {
{ role: "user", content: systemPrompt },
{ role: "user", content: "Hello!" },
],
temperature: 0, // temperature should always be included with default of 0
},
{ path: "/models/chat/completions" },
)
Expand All @@ -579,6 +581,7 @@ describe("OpenAiHandler", () => {
{
model: azureOptions.openAiModelId,
messages: [{ role: "user", content: "Test prompt" }],
temperature: 0, // temperature should always be included with default of 0
},
{ path: "/models/chat/completions" },
)
Expand Down
6 changes: 3 additions & 3 deletions src/api/providers/__tests__/roo.spec.ts
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Expand Up @@ -354,16 +354,16 @@ describe("RooHandler", () => {
})

describe("temperature and model configuration", () => {
it("should omit temperature when not explicitly set", async () => {
it("should include default temperature of 0.7 when not explicitly set", async () => {
handler = new RooHandler(mockOptions)
const stream = handler.createMessage(systemPrompt, messages)
for await (const _chunk of stream) {
// Consume stream
}

expect(mockCreate).toHaveBeenCalledWith(
expect.not.objectContaining({
temperature: expect.anything(),
expect.objectContaining({
temperature: 0.7, // Should include Roo's default temperature of 0.7
}),
undefined,
)
Expand Down
8 changes: 3 additions & 5 deletions src/api/providers/base-openai-compatible-provider.ts
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Expand Up @@ -79,11 +79,9 @@ export abstract class BaseOpenAiCompatibleProvider<ModelName extends string>
messages: [{ role: "system", content: systemPrompt }, ...convertToOpenAiMessages(messages)],
stream: true,
stream_options: { include_usage: true },
}

// Only include temperature if explicitly set
if (this.options.modelTemperature !== undefined) {
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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@roomote roomote bot Sep 1, 2025

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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.

}

return this.client.chat.completions.create(params, requestOptions)
Expand Down
16 changes: 8 additions & 8 deletions src/api/providers/openai.ts
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Expand Up @@ -161,14 +161,9 @@ export class OpenAiHandler extends BaseProvider implements SingleCompletionHandl
stream: true as const,
...(isGrokXAI ? {} : { stream_options: { include_usage: true } }),
...(reasoning && reasoning),
}

// Only include temperature if explicitly set
if (this.options.modelTemperature !== undefined) {
requestOptions.temperature = this.options.modelTemperature
} else if (deepseekReasoner) {
// DeepSeek Reasoner has a specific default temperature
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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@roomote roomote bot Sep 1, 2025

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Good fix for the streaming case! This ensures temperature is always included with appropriate defaults.

}

// Add max_tokens if needed
Expand Down Expand Up @@ -231,6 +226,9 @@ export class OpenAiHandler extends BaseProvider implements SingleCompletionHandl
: enabledLegacyFormat
? [systemMessage, ...convertToSimpleMessages(messages)]
: [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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@roomote roomote bot Sep 1, 2025

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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.

}

// Add max_tokens if needed
Expand Down Expand Up @@ -276,6 +274,8 @@ export class OpenAiHandler extends BaseProvider implements SingleCompletionHandl
const requestOptions: OpenAI.Chat.Completions.ChatCompletionCreateParamsNonStreaming = {
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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@roomote roomote bot Sep 1, 2025

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Good catch on the completePrompt method! This ensures consistency across all API calls.

}

// Add max_tokens if needed
Expand Down
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