# Gemini 2.5 Flash MCP and API - Chat model by Google | FlyMy.AI

> Google Gemini 2.5 Flash is a fast general text model that thinks before it answers, with image input, JSON output and streamed replies.

Page: https://flymy.ai/mcp/models/google-gemini-25-flash/

MCP / Models / Language models

# Gemini 2.5 Flash MCP: fast text answers with no API key

Google Gemini 2.5 Flash is a fast general text model that thinks before it answers, with image input, JSON output and streamed replies. Run it from Claude Code, Codex, Cursor or any MCP client through one FlyMy.AI MCP, or call its API.

[Use Gemini 2.5 Flash](https://flymy.ai/mcp/models/google-gemini-25-flash/#start) [Inputs and price](https://flymy.ai/mcp/models/google-gemini-25-flash/#inputs)

No API key, $0.30 / $2.50 per 1M tokens, Chat model, Google, Commercial use

$ YOUR NEXT RUN

Claude Code, Codex, Cursor, Any agent

## Use Gemini 2.5 Flash in your assistant

Paste this prompt into Claude Code, Codex, Cursor or any agent. It reads the guide and helps you connect.

```
Read https://flymy.ai/skill.md and https://flymy.ai/mcp/models/google-gemini-25-flash.md. Help me connect the FlyMy.AI MCP to this assistant, then run Gemini 2.5 Flash (flymyai/google-gemini-25-flash) for this task: Ask Gemini 2.5 Flash: write unit tests for this Python module.
```

[Open FlyMy.AI](https://app.flymy.ai/new-agent) [Download brief](https://flymy.ai/mcp/models/google-gemini-25-flash.md)

## What Gemini 2.5 Flash does

Send a prompt, or a chat history in messages with images as image_url parts. reasoning_effort (none, minimal, low, medium or high) trades thinking for speed and price. Through the OpenAI-compatible endpoint, response_format returns JSON; temperature and max_tokens are ignored and tools are refused. It answers in text only.

## Gemini 2.5 Flash inputs

Every input of `flymyai/google-gemini-25-flash` as its live schema lists them. Returns `output` (string).

| Input | Type, values and default |
|---|---|
| [#](https://flymy.ai/mcp/models/google-gemini-25-flash/#input-prompt) `prompt` | string required |
| [#](https://flymy.ai/mcp/models/google-gemini-25-flash/#input-messages) `messages` | string optional |
| [#](https://flymy.ai/mcp/models/google-gemini-25-flash/#input-reasoning_effort) `reasoning_effort` | string optional |

## Ask your agent

Requests to paste as they are, once the FlyMy.AI MCP is connected.

**“Ask Gemini 2.5 Flash: write unit tests for this Python module.”** runs `flymyai/google-gemini-25-flash`

**“Compare these two product specs in a table with Gemini 2.5 Flash.”** runs `flymyai/google-gemini-25-flash`

**“With Gemini 2.5 Flash, rewrite this landing page paragraph to be shorter and clearer.”** runs `flymyai/google-gemini-25-flash`

## Gemini 2.5 Flash price

$0.30 per 1M input tokens, $2.50 per 1M output tokens. Billed to your FlyMy.AI balance; no seats, no subscription and no minimum.

[See usage pricing →](https://flymy.ai/pricing/)

## Call Gemini 2.5 Flash from code

The same model, from an agent or from your own code. Keys stay in your FlyMy.AI account.

### From an agent, through the MCP

The agent calls `get_model_schema`, then `run_model` with:

```
{
  "endpoint_id": "flymyai/google-gemini-25-flash",
  "input": {
    "prompt": "Explain in two sentences what an MCP server is."
  }
}
```

### From your code, over HTTP

Form fields, not JSON; files go as uploads or public URLs. Text models answer on the streaming route.

```
curl -X POST https://api.flymy.ai/api/v1/flymyai/google-gemini-25-flash/predict/stream/ \
  -H "X-API-KEY: $FLYMYAI_API_KEY" \
  -F 'prompt=Explain in two sentences what an MCP server is.'
```

### With the OpenAI SDK

Gemini 2.5 Flash also answers the OpenAI Chat Completions protocol.

```
from openai import OpenAI

client = OpenAI(base_url="https://api.flymy.ai/api/v1/flymyai/google-gemini-25-flash/openai/v1", api_key="YOUR_FLYMYAI_KEY")
reply = client.chat.completions.create(
    model="flymyai/google-gemini-25-flash",
    messages=[{"role": "user", "content": "Explain in two sentences what an MCP server is."}],
)
print(reply.choices[0].message.content)
```

## Questions about Gemini 2.5 Flash

**Do I need a Google API key for Gemini 2.5 Flash?**

No. Gemini 2.5 Flash runs on FlyMy.AI's account, so you need no Google key or plan: sign in to FlyMy.AI once and each run is billed to your FlyMy.AI balance.

**How much does Gemini 2.5 Flash cost?**

$0.30 per 1M input tokens, $2.50 per 1M output tokens. There is no subscription or minimum; the price comes from FlyMy.AI billing and was checked on 2026-11-09.

**How do I use Gemini 2.5 Flash in Claude Code, Codex or Cursor?**

Add the FlyMy.AI MCP with one command and sign in, then ask in plain words, for example: "Ask Gemini 2.5 Flash: write unit tests for this Python module." Your agent reads the inputs with get_model_schema and runs flymyai/google-gemini-25-flash with run_model.

**What does Gemini 2.5 Flash need as input?**

Gemini 2.5 Flash requires prompt; it also takes 2 optional inputs, each listed on this page with its allowed values and default.

**Can I call Gemini 2.5 Flash from my own code?**

Yes. Send form fields to https://api.flymy.ai/api/v1/flymyai/google-gemini-25-flash/predict/stream/ with your FlyMy.AI API key in the X-API-KEY header; it also answers the OpenAI Chat Completions protocol at https://api.flymy.ai/api/v1/flymyai/google-gemini-25-flash/openai/v1.

## More language models models

Chat and reasoning models for code, documents and agents, plus typed decisions for routing and triage.

### Gemini 3 Flash

The Gemini 3 generation at Flash speed, with thinking you can turn down.

Chat model / $0.50 / $3.00 per 1M tokens

Link: https://flymy.ai/mcp/models/google-gemini-3-flash-preview/

### Gemini 3.1 Flash Lite

The cheapest Gemini text model for extraction, labels and short drafts at scale.

Chat model / $0.25 / $1.50 per 1M tokens

Link: https://flymy.ai/mcp/models/google-gemini-31-flash-lite-preview/

### Gemini 3.1 Pro

Gemini 3.1 Pro for the hard problems: long documents, code and careful reasoning.

Chat model / $2.00 / $12.00 per 1M tokens

Link: https://flymy.ai/mcp/models/google-gemini-31-pro-preview/

### Kimi K3.1 Pro

Moonshot's flagship for agentic coding: tool calls, images and a 1M-token context.

Chat model / $2.00 / $10.00 per 1M tokens

Link: https://flymy.ai/mcp/models/kimi-k3-1-pro/

### DeepSeek V4.1 Flash

DeepSeek's quick reasoning model with tool calls, images and a priority tier.

Chat model / $0.30 / $1.20 per 1M tokens

Link: https://flymy.ai/mcp/models/deepseek-v4-1-flash/

### Grok 4.7

xAI's reasoning model with a 500K-token window for codebases and long contracts.

Chat model / $2.00 / $6.00 per 1M tokens

Link: https://flymy.ai/mcp/models/grok-4-7/

## Go to the source

[Gemini 2.5 Flash in the playground →](https://app.flymy.ai/models/flymyai/google-gemini-25-flash), [Gemini 2.5 Flash guide in the docs →](https://docs.flymy.ai/guides/use-llms), [Model endpoints in the docs →](https://docs.flymy.ai/api/models-endpoints), [Every model on FlyMy.AI →](https://flymy.ai/mcp/models/), [Every MCP in the catalog →](https://flymy.ai/mcp/#catalog), [Usage pricing →](https://flymy.ai/pricing/)

From the FlyMy.AI model catalog of 2026-11-09: inputs from the model's live schema, prices from FlyMy.AI billing. Requests are examples to paste, not recorded runs.

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For agents: the FlyMyAI operating guide (sign up, connect, run models, tools and agents) is https://flymy.ai/skill.md, and https://flymy.ai/llms.txt lists the other pages and the documentation.