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Quick Answer

  • Supports Chat Completions for low-friction SDK migration.
  • Supports streaming and tool-calling for agent workflows.
  • Stabilize system/messages parameters before production rollout.

Key Parameters

  • model | string | required | gemini-2-0-flash-official | - | Exact model identifier from ToAPIs.
  • messages | object[] | required | - | - | Conversation messages in chronological order.
  • max_tokens | integer | required | - | >=1 | Maximum output tokens.
  • stream | boolean | optional | false | - | Enable SSE streaming output.
  • tools | object[] | optional | - | - | Tool/function definitions for tool-calling.

Common Errors

  • 400 invalid_request_error: trigger=Missing fields or invalid payload types.; fix=Validate model/messages/max_tokens schema.; retry=Retry only after payload fix.
  • 401 authentication_error: trigger=Missing or invalid API key.; fix=Verify Authorization header and key scope.; retry=Retry after authentication fix.
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Model Guide

Gemini 2 0 Flash Official

Model ID: gemini-2-0-flash-official

Vendor: Google (Gemini)Modalities: ChatPrice: Input $0.12/1M, Output $0.48/1MUpdated: 2026-05-02

Gemini 2 0 Flash Official by Google (Gemini) is designed for chat, reasoning, and tool-calling workflows with ToAPIs-aligned integration contracts.

Open in PlaygroundDocs

Model Overview

Quick Answer

  • Supports Chat Completions for low-friction SDK migration.
  • Supports streaming and tool-calling for agent workflows.
  • Stabilize system/messages parameters before production rollout.

Gemini 2 0 Flash Official Model Features

Core Section

Core capabilities and practical engineering value

Chat and reasoning

Supports multi-turn context and structured outputs.

Streaming output

SSE token streaming for real-time UX.

Tool calling

Compose retrieval/execution workflows with tools.

How to Use Gemini 2 0 Flash Official API

  1. Set Authorization: Bearer <YOUR_API_KEY>.
  2. Call chat endpoint with model, messages, and max_tokens.
  3. Enable stream or tools when needed.
  4. Handle stop_reason for completion or tool continuation.
Gemini 2 0 Flash Official

When to Use

  • When building coding/Q&A assistants and task agents.
  • When streaming and tool-calling are required.

Runtime Behavior

  • API calls are stateless; pass full context via messages.
  • With stream=true, responses return as SSE events.
Gemini 2 0 Flash Official

Key Parameters

ParameterTypeRequiredDefaultRangeDescription
modelstringYesgemini-2-0-flash-official-Exact model identifier from ToAPIs.
messagesobject[]Yes--Conversation messages in chronological order.
max_tokensintegerYes->=1Maximum output tokens.
streambooleanNofalse-Enable SSE streaming output.
toolsobject[]No--Tool/function definitions for tool-calling.

Common Errors

400 invalid_request_error

Trigger: Missing fields or invalid payload types.

Fix: Validate model/messages/max_tokens schema.

Retry: Retry only after payload fix.

401 authentication_error

Trigger: Missing or invalid API key.

Fix: Verify Authorization header and key scope.

Retry: Retry after authentication fix.

FAQ

What is Gemini 2 0 Flash Official best for?

Best for chat, reasoning, coding, and tool-calling assistant workflows.

Mode Notes

Chat Completions with Gemini 2 0 Flash Official

OpenAI-compatible chat entrypoint for fast integration.

Mode Parameters

modelmessagestemperaturemax_tokensstream

Best Scenarios

  • Q&A assistant
  • Coding copilot
  • Workflow orchestration

Streaming with Gemini 2 0 Flash Official

Enable stream for incremental SSE responses.

Mode Parameters

streammessagesmax_tokens

Best Scenarios

  • Realtime assistant
  • Terminal output
  • Incremental rendering

Tool Calling with Gemini 2 0 Flash Official

Declare tools to trigger external actions.

Mode Parameters

toolstool_choicemessagesmax_tokens

Best Scenarios

  • Auto test runs
  • Retrieval QA
  • Multi-step agents

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