geminiavailablesupports_function_callingsupports_parallel_function_callingsupports_pdf_inputsupports_prompt_cachingsupports_reasoningsupports_response_schemasupports_system_messagessupports_tool_choicesupports_url_contextsupports_visionsupports_web_search

Back to Model Explorer

GoogleAvailable on AvalAI

Gemini 2.5 Flash API on AvalAI

gemini-2.5-flash

Gemini 2.5 Flash is an AI model from Google that is available through AvalAI's OpenAI-compatible API.

Open dashboardCompare

Price display scale

Input price$0.30 / 1M tokens

Output price$2.50 / 1M tokens

Context window1,048,576 tokens

Maximum output65,535 tokens

Release date2025-06-17

Knowledge cutoff2025-01-31

Use Gemini 2.5 Flash with the AvalAI API

Keep the API key in an environment variable and send requests from server-side code.

Bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{"model": "gemini-2.5-flash", "messages": [{"role": "user", "content": "Give a concise, practical solution."}]}'

Python

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AVALAI_API_KEY"],
    base_url="https://api.avalai.ir/v1",
)

response = client.chat.completions.create(
    model="gemini-2.5-flash",
    messages=[{"role": "user", "content": "Give a concise, practical solution."}],
)

print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.AVALAI_API_KEY,
  baseURL: "https://api.avalai.ir/v1",
});

const response = await client.chat.completions.create({
  model: "gemini-2.5-flash",
  messages: [{ role: "user", content: "Give a concise, practical solution." }],
});

console.log(response.choices[0].message.content);

Create an API keyRead the quickstart

Capabilities and endpoints

• Function calling
• Parallel function calling
• PDF input
• Prompt caching
• Reasoning
• Structured output
• System messages
• Tool choice
• URL context
• Vision
• Web search

Endpoints

• /v1/chat/completions
• /v1/completions
• /v1/batch

Third-party model parameters

Third-party reference data does not change AvalAI endpoint support; use the capabilities and endpoints above.

• include_reasoning
• max_tokens
• reasoning
• response_format
• seed
• stop
• structured_outputs
• temperature
• tool_choice
• tools
• top_p

Gemini 2.5 Flash rate limits

Tier	RPM	TPM
Basic	3	40,000
Tier 1	50	1,000,000
Tier 2	500	4,000,000
Tier 3	1,000	8,000,000
Tier 4	2,500	10,000,000
Tier 5	10,000	20,000,000

AvalAI and reference marketplace pricing

Token role	AvalAI final price0% platform fee	OpenRouter cost breakdown
		Model rate	Credit purchase fee	Effective OpenRouter cost after fee
Input price	$0.30 / 1M tokens	$0.30 / 1M tokens	5.5%	$0.32 / 1M tokens
Output price	$2.50 / 1M tokens	$2.50 / 1M tokens	5.5%	$2.64 / 1M tokens

AvalAI pricing is final with a 0% platform fee. The effective OpenRouter prices add its 5.5% credit purchase fee to the highest reported model rate, including long-context tiers. OpenRouter charges a 5.5% fee when credits are purchased ($0.80 minimum), so small credit purchases can have a higher effective cost. OpenRouter FAQ

Third-party model data

Source: OpenRouter

Independent sources supplement this context; AvalAI remains authoritative for pricing, availability, and endpoint support.

Reviewed snapshot 2026-08-13

Provider count

—

Context window range

1,048,576

Maximum output range

65,535

OpenRouter model input rate range

$0.3 / 1M

OpenRouter model output rate range

$2.5 / 1M

OpenRouter fee

5.5% credit purchase fee · OpenRouter fee details

Effective input price range after fee

$0.3165 / 1M

Effective output price range after fee

$2.6375 / 1M

Related models

• gemini-2.5-flash-tts
• gemini-2.5-flash-preview-tts
• Gemini 2.5 Flash Lite
• Nano Banana (Gemini 2.5 Flash Image)

Frequently asked questions

What is the Gemini 2.5 Flash API on AvalAI?

Create an AvalAI API key and send the model ID gemini-2.5-flash to one of the supported endpoints shown on this page.

How much does the Gemini 2.5 Flash API cost on AvalAI?

The Gemini 2.5 Flash API on AvalAI costs $0.30 per 1M input tokens and $2.50 per 1M output tokens.

What is the token cost for Gemini 2.5 Flash?

Current AvalAI pricing for Gemini 2.5 Flash is $0.30 / 1M tokens for input and $2.50 / 1M tokens for output.

What is the Gemini 2.5 Flash context window?

The recorded maximum input context for Gemini 2.5 Flash is 1,048,576 tokens.

What are the rate limits for Gemini 2.5 Flash on AvalAI?

On tier 5, Gemini 2.5 Flash on AvalAI supports up to 10,000 requests per minute and 20,000,000 tokens per minute.

What features does Gemini 2.5 Flash support on AvalAI?

Gemini 2.5 Flash on AvalAI supports Function calling, Parallel function calling, PDF input, Prompt caching, Reasoning, Structured output, System messages, Tool choice, URL context, Vision, Web search.

What account tier is required to use Gemini 2.5 Flash on AvalAI?

Calling Gemini 2.5 Flash on AvalAI requires the Basic tier (tier 0) or higher.

Third-party data and freshness

• Pricing, availability, endpoints, and rate limits: AvalAI structured data (authoritative)
• OpenRouter marketplace · Last checked: 2026-08-13