Gemini 2.5 Flash Lite·续2

</details>

<details>

<summary>Creative Writing — Higher temperature for creative output</summary>

const response = await env.AI.run(
  'google/gemini-2.5-flash-lite',
  {
    contents: [
      {
        parts: [{ text: 'Write a short story opening about a detective finding an unusual clue.' }],
        role: 'user',
      },
    ],
    generationConfig: { maxOutputTokens: 1500, temperature: 0.8 },
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "google/gemini-2.5-flash-lite",
  "input": {
    "contents": [
      {
        "parts": [
          {
            "text": "Write a short story opening about a detective finding an unusual clue."
          }
        ],
        "role": "user"
      }
    ],
    "generationConfig": {
      "maxOutputTokens": 1500,
      "temperature": 0.8
    }
  }
}'

The air in the cramped apartment hung thick with the scent of stale cigarettes and something vaguely floral, a cloying perfume that did little to mask the metallic tang of dried blood. Detective Miles Corbin, a man whose trench coat seemed permanently etched with the grime of a thousand city streets, surveyed the scene with weary eyes. Another Tuesday, another victim. But this one, a young woman named Clara Bellweather, had left behind more than just a messy end to her life.

Miles knelt beside the overturned coffee table, its polished surface marred by a dark, sticky stain. He’d seen plenty of overturned furniture, plenty of blood. What made him pause, what pricked at his seasoned detective’s intuition, was the object nestled amidst the shattered ceramic mug and scattered papers. It was a single, perfectly preserved peacock feather.

Not just any feather, either. This one shimmered with an iridescent blues and greens, its eye a mesmerizing swirl of sapphire and emerald. It was impossibly vibrant, almost glowing against the drab carpet. Miles had seen exotic pets, he’d even seen a crime scene once that involved a boa constrictor, but never, in all his years, had he encountered a peacock feather at a homicide. And not just a stray one, mind you. This looked…placed. Deliberately. As if the killer, in their haste or their madness, had left behind a calling card of pure, unadulterated strangeness.

{
  "candidates": [
    {
      "avgLogprobs": -0.5958368333719545,
      "content": {
        "parts": [
          {
            "text": "The air in the cramped apartment hung thick with the scent of stale cigarettes and something vaguely floral, a cloying perfume that did little to mask the metallic tang of dried blood. Detective Miles Corbin, a man whose trench coat seemed permanently etched with the grime of a thousand city streets, surveyed the scene with weary eyes. Another Tuesday, another victim. But this one, a young woman named Clara Bellweather, had left behind more than just a messy end to her life.\n\nMiles knelt beside the overturned coffee table, its polished surface marred by a dark, sticky stain. He’d seen plenty of overturned furniture, plenty of blood. What made him pause, what pricked at his seasoned detective’s intuition, was the object nestled amidst the shattered ceramic mug and scattered papers. It was a single, perfectly preserved peacock feather.\n\nNot just any feather, either. This one shimmered with an iridescent blues and greens, its eye a mesmerizing swirl of sapphire and emerald. It was impossibly vibrant, almost glowing against the drab carpet. Miles had seen exotic pets, he’d even seen a crime scene once that involved a boa constrictor, but never, in all his years, had he encountered a peacock feather at a homicide. And not just a stray one, mind you. This looked…placed. Deliberately. As if the killer, in their haste or their madness, had left behind a calling card of pure, unadulterated strangeness."
          }
        ],
        "role": "model"
      },
      "finishReason": "STOP"
    }
  ],
  "createTime": "2026-04-28T19:34:46.279307Z",
  "gatewayMetadata": {
    "keySource": "BYOK"
  },
  "modelVersion": "gemini-2.5-flash-lite",
  "responseId": "1gvxaYuGEZafq8YP873hkQQ",
  "usageMetadata": {
    "candidatesTokenCount": 295,
    "candidatesTokensDetails": [
      {
        "modality": "TEXT",
        "tokenCount": 295
      }
    ],
    "promptTokenCount": 13,
    "promptTokensDetails": [
      {
        "modality": "TEXT",
        "tokenCount": 13
      }
    ],
    "totalTokenCount": 308,
    "trafficType": "ON_DEMAND"
  }
}

</details>

Parameters

Schema variant

Generate ContentChat Completions

▶contents[]

arrayrequired

▶systemInstruction{}

object

▶generationConfig{}

object

▶safetySettings[]

array

▶tools[]

array

toolConfig

▶messages[]

arrayrequired

temperature

numberminimum: 0maximum: 2

max_tokens

numberexclusiveMinimum: 0

max_completion_tokens

numberexclusiveMinimum: 0

top_p

numberminimum: 0maximum: 1

frequency_penalty

numberminimum: -2maximum: 2

presence_penalty

numberminimum: -2maximum: 2

stream

boolean

▶stream_options{}

object

▶tools[]

array

tool_choice

response_format

▶modalities[]

array

▶audio{}

object

reasoning_effort

stringOptional reasoning control; availability and accepted values are model-dependent.

▶candidates[]

array

▶usageMetadata{}

object

modelVersion

string

id

string

object

string

created

number

model

string

▶choices[]

array

▶usage{}

object

API Schemas (Raw)

Input Open Download

Output Open Download

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description: Google's most capable Gemini 2.5 model with strong reasoning, thinking support, and a 1M token context window. title: Gemini 2.5 Pro image: https://developers.cloudflare.com/og-docs.png

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