Gemini 2.5 Pro (Stream)

Google’s Gemini 2.5 Pro streaming via Gemini API. Real-time token streaming with SSE.

Gemini 2.5 Pro (Stream) provides streaming text generation using Google’s Gemini 2.5 Pro model via AnyFast. Responses are delivered in real-time using Server-Sent Events (SSE).

Key capabilities

• SSE Streaming — Real-time token-by-token response delivery
• Thinking mode — Supports thinking configuration for enhanced reasoning
• Multi-turn conversations — Handles complex dialogue with system instructions
• Safety settings — Configurable content safety filters

Quick example

cURL

curl "https://www.anyfast.ai/v1beta/models/gemini-2.5-pro:streamGenerateContent?key=YOUR_API_KEY&alt=sse" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [
      {
        "role": "user",
        "parts": [{ "text": "Write a short poem about the ocean." }]
      }
    ],
    "generationConfig": {
      "temperature": 1,
      "topP": 1,
      "thinkingConfig": {
        "includeThoughts": true,
        "thinkingBudget": 26240
      }
    }
  }'

Parameters

Parameter	Type	Required	Description
key	string	Yes	API key (query parameter)
alt	string	No	Set to sse for SSE streaming
contents	array	Yes	Array of { role, parts } objects
systemInstruction	object	No	System instruction with parts array
generationConfig.temperature	float	No	0–2. Controls randomness. Default: 1
generationConfig.topP	float	No	Nucleus sampling threshold. Default: 1
generationConfig.thinkingConfig	object	No	Thinking mode configuration
safetySettings	array	No	Content safety filter settings

API Reference

View the interactive API playground for Gemini 2.5 Pro (Stream).