Google
8 params
Google Gemini 2.5 Flash Lite parameters
These are the parameters modelparams.dev tracks for Google Gemini 2.5 Flash Lite. Each row gives the type, default, valid range or values, and the conditions that gate it. It's the same data the JSON API serves.
Length
1 param
| Parameter | Type | Default | Description | Condition |
|---|---|---|---|---|
|
Max output tokens
generationConfig.maxOutputTokens
|
integer (1…65536) | — | Maximum number of tokens to include in a response candidate. | — |
Sampling
4 params
| Parameter | Type | Default | Description | Condition |
|---|---|---|---|---|
|
Temperature
generationConfig.temperature
|
number (0…2 step 0.1) | 1 | Controls randomness. Lower values make outputs more focused; higher values make them more varied. | — |
|
Top P
generationConfig.topP
|
number (0…1 step 0.01) | 0.95 | Controls nucleus sampling by limiting generation to tokens within the selected cumulative probability. | — |
|
Top K
generationConfig.topK
|
integer (0…+∞) | 64 | Limits token sampling to the top K most likely next tokens. | — |
|
Seed
generationConfig.seed
|
integer | — | Optional seed used for decoding when reproducible sampling is desired. | — |
Reasoning
2 params
| Parameter | Type | Default | Description | Condition |
|---|---|---|---|---|
|
Thinking budget
generationConfig.thinkingConfig.thinkingBudget
|
integer | 0 | Number of thinking tokens Gemini should use; -1 uses dynamic thinking, 0 disables thinking, and fixed budgets start at 512 tokens. | — |
|
Include thoughts
generationConfig.thinkingConfig.includeThoughts
|
boolean | false | Controls whether Gemini returns available thought summaries in the response parts. | — |
Output
1 param
| Parameter | Type | Default | Description | Condition |
|---|---|---|---|---|
|
Response MIME type
generationConfig.responseMimeType
|
enum (text/plain | application/json) | "text/plain" | MIME type for generated text candidates. | — |
Google Gemini 2.5 Flash Lite parameters in brief
Google Gemini 2.5 Flash Lite documents 8 API parameters, grouped by what they control:
-
Length:
generationConfig.maxOutputTokensrange 1–65536. -
Sampling:
generationConfig.temperaturedefaults to 1, range 0–2;generationConfig.topPdefaults to 0.95, range 0–1;generationConfig.topKdefaults to 64, minimum 0;generationConfig.seed. -
Reasoning:
generationConfig.thinkingConfig.thinkingBudgetdefaults to 0;generationConfig.thinkingConfig.includeThoughtsdefaults to false. -
Output:
generationConfig.responseMimeTypedefaults to "text/plain", accepts "text/plain", "application/json".
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