Gemini Generating Content - CometAPI Documentation

POST

v1beta

models

{model}

{operator}

from google import genai

client = genai.Client(
    api_key="<COMETAPI_KEY>",
    http_options={"api_version": "v1beta", "base_url": "https://api.cometapi.com"},
)

response = client.models.generate_content(
    model="gemini-3-flash-preview",
    contents="Explain how AI works in a few words",
)

print(response.text)

{
  "candidates": [
    {
      "content": {
        "role": "<string>",
        "parts": [
          {
            "text": "<string>",
            "functionCall": {
              "name": "<string>",
              "args": {}
            },
            "inlineData": {
              "mimeType": "<string>",
              "data": "<string>"
            },
            "thought": true
          }
        ]
      },
      "safetyRatings": [
        {
          "category": "<string>",
          "probability": "<string>",
          "blocked": true
        }
      ],
      "citationMetadata": {
        "citationSources": [
          {
            "startIndex": 123,
            "endIndex": 123,
            "uri": "<string>",
            "license": "<string>"
          }
        ]
      },
      "tokenCount": 123,
      "avgLogprobs": 123,
      "groundingMetadata": {
        "groundingChunks": [
          {
            "web": {
              "uri": "<string>",
              "title": "<string>"
            }
          }
        ],
        "groundingSupports": [
          {
            "groundingChunkIndices": [
              123
            ],
            "confidenceScores": [
              123
            ],
            "segment": {
              "startIndex": 123,
              "endIndex": 123,
              "text": "<string>"
            }
          }
        ],
        "webSearchQueries": [
          "<string>"
        ]
      },
      "index": 123
    }
  ],
  "promptFeedback": {
    "safetyRatings": [
      {
        "category": "<string>",
        "probability": "<string>",
        "blocked": true
      }
    ]
  },
  "usageMetadata": {
    "promptTokenCount": 123,
    "candidatesTokenCount": 123,
    "totalTokenCount": 123,
    "trafficType": "<string>",
    "thoughtsTokenCount": 123,
    "promptTokensDetails": [
      {
        "modality": "<string>",
        "tokenCount": 123
      }
    ],
    "candidatesTokensDetails": [
      {
        "modality": "<string>",
        "tokenCount": 123
      }
    ]
  },
  "modelVersion": "<string>",
  "createTime": "<string>",
  "responseId": "<string>"
}

CometAPI støtter Gemini sitt native API-format, og gir deg full tilgang til Gemini-spesifikke funksjoner som thinking-kontroll, Google Search-grounding, native modaliteter for bildegenerering og mer. Bruk dette endepunktet når du trenger egenskaper som ikke er tilgjengelige gjennom det OpenAI-kompatible chat-endepunktet.

Både x-goog-api-key og Authorization: Bearer headere støttes for autentisering.

Rask start

For å bruke en hvilken som helst Gemini SDK eller HTTP-klient med CometAPI, bytt ut base-URL og API-nøkkel:

Setting	Google Default	CometAPI
Base URL	`generativelanguage.googleapis.com`	`api.cometapi.com`
API Key	`$GEMINI_API_KEY`	`$COMETAPI_KEY`

Konfigurer thinking (reasoning)

Gemini-modeller kan utføre intern reasoning før de genererer et svar. Kontrollmetoden avhenger av modellgenerasjonen.

Gemini 3 (thinkingLevel)
Gemini 2.5 (thinkingBudget)

Gemini 3-modeller bruker thinkingLevel for å kontrollere dybden på reasoning. Tilgjengelige nivåer: MINIMAL, LOW, MEDIUM, HIGH.Bruk gemini-3-flash-preview som standard eksempelmodell med mindre du spesifikt trenger en annen Gemini 3-variant.

curl "https://api.cometapi.com/v1beta/models/gemini-3-flash-preview:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: $COMETAPI_KEY" \
  -d '{
    "contents": [{"parts": [{"text": "Explain quantum physics simply."}]}],
    "generationConfig": {
      "thinkingConfig": {"thinkingLevel": "LOW"}
    }
  }'

Gemini 2.5-modeller bruker thinkingBudget for finjustert kontroll på Token-nivå:

0 — deaktiver thinking
-1 — dynamisk (modellen bestemmer, standard)
> 0 — spesifikt Token-budsjett (f.eks. 1024, 2048)

curl "https://api.cometapi.com/v1beta/models/gemini-2.5-flash:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: $COMETAPI_KEY" \
  -d '{
    "contents": [{"parts": [{"text": "Solve this logic puzzle step by step."}]}],
    "generationConfig": {
      "thinkingConfig": {"thinkingBudget": 2048}
    }
  }'

Bruk av thinkingLevel med Gemini 2.5-modeller (eller thinkingBudget med Gemini 3-modeller) kan føre til feil. Bruk riktig parameter for modellversjonen din.

Stream svar

For å motta Server-Sent Events mens modellen genererer innhold, bruk streamGenerateContent?alt=sse som operator. Hver SSE-hendelse inneholder en data:-linje med et JSON GenerateContentResponse-objekt.

curl "https://api.cometapi.com/v1beta/models/gemini-3-flash-preview:streamGenerateContent?alt=sse" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: $COMETAPI_KEY" \
  --no-buffer \
  -d '{
    "contents": [{"parts": [{"text": "Write a short poem about the stars"}]}]
  }'

Sett systeminstruksjoner

For å styre modellens oppførsel gjennom hele samtalen, bruk systemInstruction:

curl "https://api.cometapi.com/v1beta/models/gemini-3-flash-preview:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: $COMETAPI_KEY" \
  -d '{
    "contents": [{"parts": [{"text": "What is 2+2?"}]}],
    "systemInstruction": {
      "parts": [{"text": "You are a math tutor. Always show your work."}]
    }
  }'

Be om JSON-output

For å tvinge strukturert JSON-output, sett responseMimeType. Du kan også oppgi et responseSchema for streng skjemavalidering:

curl "https://api.cometapi.com/v1beta/models/gemini-3-flash-preview:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: $COMETAPI_KEY" \
  -d '{
    "contents": [{"parts": [{"text": "List 3 planets with their distances from the sun"}]}],
    "generationConfig": {
      "responseMimeType": "application/json"
    }
  }'

Ground med Google Search

For å aktivere nettsøk i sanntid, legg til et googleSearch-verktøy:

curl "https://api.cometapi.com/v1beta/models/gemini-3-flash-preview:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: $COMETAPI_KEY" \
  -d '{
    "contents": [{"parts": [{"text": "Who won the euro 2024?"}]}],
    "tools": [{"google_search": {}}]
  }'

Svaret inkluderer groundingMetadata med kilde-URL-er og konfidensscore.

Svarseksempel

Et typisk svar fra CometAPI sitt Gemini-endepunkt:

{
  "candidates": [
    {
      "content": {
        "role": "model",
        "parts": [{"text": "Hello"}]
      },
      "finishReason": "STOP",
      "avgLogprobs": -0.0023
    }
  ],
  "usageMetadata": {
    "promptTokenCount": 5,
    "candidatesTokenCount": 1,
    "totalTokenCount": 30,
    "trafficType": "ON_DEMAND",
    "thoughtsTokenCount": 24,
    "promptTokensDetails": [{"modality": "TEXT", "tokenCount": 5}],
    "candidatesTokensDetails": [{"modality": "TEXT", "tokenCount": 1}]
  },
  "modelVersion": "gemini-3-flash-preview",
  "createTime": "2026-03-25T04:21:43.756483Z",
  "responseId": "CeynaY3LDtvG4_UP0qaCuQY"
}

Feltet thoughtsTokenCount i usageMetadata viser hvor mange Tokens modellen brukte på intern reasoning, selv når thinking-output ikke er inkludert i svaret.

Sammenlign med OpenAI-kompatibelt endepunkt

Feature	Gemini Native (`/v1beta/models/...`)	OpenAI-Compatible (`/v1/chat/completions`)
Thinking control	`thinkingConfig` with `thinkingLevel` / `thinkingBudget`	Ikke tilgjengelig
Google Search grounding	`tools: [\{"google_search": \{\}\}]`	Ikke tilgjengelig
Google Maps grounding	`tools: [\{"googleMaps": \{\}\}]`	Ikke tilgjengelig
Image generation modality	`responseModalities: ["IMAGE"]`	Ikke tilgjengelig
Auth header	`x-goog-api-key` or `Bearer`	Kun `Bearer`
Response format	Gemini native (`candidates`, `parts`)	OpenAI-format (`choices`, `message`)

Autorisasjoner

x-goog-api-key

string

header

påkrevd

Your CometAPI key passed via the x-goog-api-key header. Bearer token authentication (Authorization: Bearer <key>) is also supported.

Stien-parametere

model

string

påkrevd

Gemini model ID. Example: gemini-3-flash-preview, gemini-2.5-pro. See the Models page for current options.

operator

enum<string>

påkrevd

The operation to perform. Use generateContent for synchronous responses, or streamGenerateContent?alt=sse for Server-Sent Events streaming.

Tilgjengelige alternativer:

generateContent,

streamGenerateContent?alt=sse

Kropp

application/json

contents

object[]

Show child attributes

systemInstruction

object

System instructions that guide the model's behavior across the entire conversation. Text only.

Show child attributes

tools

object[]

Tools the model may use to generate responses. Supports function declarations, Google Search, Google Maps, and code execution.

Show child attributes

toolConfig

object

Configuration for tool usage, such as function calling mode.

Show child attributes

safetySettings

object[]

Safety filter settings. Override default thresholds for specific harm categories.

Show child attributes

generationConfig

object

Configuration for model generation behavior including temperature, output length, and response format.

Show child attributes

cachedContent

string

The name of cached content to use as context. Format: cachedContents/{id}. See the Gemini context caching documentation for details.

Svar

200 - application/json

Successful response. For streaming requests, the response is a stream of SSE events, each containing a GenerateContentResponse JSON object prefixed with data:.

candidates

object[]

The generated response candidates.

Show child attributes

promptFeedback

object

Feedback on the prompt, including safety blocking information.

Show child attributes

usageMetadata

object

Token usage statistics for the request.

Show child attributes

modelVersion

string

The model version that generated this response.

createTime

string

The timestamp when this response was created (ISO 8601 format).

responseId

string

Unique identifier for this response.

from google import genai

client = genai.Client(
    api_key="<COMETAPI_KEY>",
    http_options={"api_version": "v1beta", "base_url": "https://api.cometapi.com"},
)

response = client.models.generate_content(
    model="gemini-3-flash-preview",
    contents="Explain how AI works in a few words",
)

print(response.text)

{
  "candidates": [
    {
      "content": {
        "role": "<string>",
        "parts": [
          {
            "text": "<string>",
            "functionCall": {
              "name": "<string>",
              "args": {}
            },
            "inlineData": {
              "mimeType": "<string>",
              "data": "<string>"
            },
            "thought": true
          }
        ]
      },
      "safetyRatings": [
        {
          "category": "<string>",
          "probability": "<string>",
          "blocked": true
        }
      ],
      "citationMetadata": {
        "citationSources": [
          {
            "startIndex": 123,
            "endIndex": 123,
            "uri": "<string>",
            "license": "<string>"
          }
        ]
      },
      "tokenCount": 123,
      "avgLogprobs": 123,
      "groundingMetadata": {
        "groundingChunks": [
          {
            "web": {
              "uri": "<string>",
              "title": "<string>"
            }
          }
        ],
        "groundingSupports": [
          {
            "groundingChunkIndices": [
              123
            ],
            "confidenceScores": [
              123
            ],
            "segment": {
              "startIndex": 123,
              "endIndex": 123,
              "text": "<string>"
            }
          }
        ],
        "webSearchQueries": [
          "<string>"
        ]
      },
      "index": 123
    }
  ],
  "promptFeedback": {
    "safetyRatings": [
      {
        "category": "<string>",
        "probability": "<string>",
        "blocked": true
      }
    ]
  },
  "usageMetadata": {
    "promptTokenCount": 123,
    "candidatesTokenCount": 123,
    "totalTokenCount": 123,
    "trafficType": "<string>",
    "thoughtsTokenCount": 123,
    "promptTokensDetails": [
      {
        "modality": "<string>",
        "tokenCount": 123
      }
    ],
    "candidatesTokensDetails": [
      {
        "modality": "<string>",
        "tokenCount": 123
      }
    ]
  },
  "modelVersion": "<string>",
  "createTime": "<string>",
  "responseId": "<string>"
}

Documentation Index

​Rask start

​Konfigurer thinking (reasoning)

​Stream svar

​Sett systeminstruksjoner

​Be om JSON-output

​Ground med Google Search

​Svarseksempel

​Sammenlign med OpenAI-kompatibelt endepunkt

Autorisasjoner

Stien-parametere

Kropp

Svar

Rask start

Konfigurer thinking (reasoning)

Stream svar

Sett systeminstruksjoner

Be om JSON-output

Ground med Google Search

Svarseksempel

Sammenlign med OpenAI-kompatibelt endepunkt