geminiavailablesupports_function_callingsupports_parallel_function_callingsupports_pdf_inputsupports_prompt_cachingsupports_response_schemasupports_system_messagessupports_tool_choicesupports_url_contextsupports_vision

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GoogleAvailable on AvalAI

Nano Banana (Gemini 2.5 Flash Image) API on AvalAI

gemini-2.5-flash-image

Nano Banana (Gemini 2.5 Flash Image) 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 window32,768 tokens

Maximum output32,768 tokens

Release date2025-10-07

Knowledge cutoff2025-01-31

Use Nano Banana (Gemini 2.5 Flash Image) 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-image", "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-image",
    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-image",
  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
• Structured output
• System messages
• Tool choice
• URL context
• Vision

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.

• max_tokens
• response_format
• seed
• stop
• structured_outputs
• temperature
• top_p

Nano Banana (Gemini 2.5 Flash Image) rate limits

Tier	RPM	TPM
Tier 1	10	450,000
Tier 2	25	1,000,000
Tier 3	50	2,000,000
Tier 4	100	4,000,000
Tier 5	250	10,000,000

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

32,768

Maximum output range

8,192

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
• Gemini 2.5 Flash

Frequently asked questions

What is the Nano Banana (Gemini 2.5 Flash Image) API on AvalAI?

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

How much does the Nano Banana (Gemini 2.5 Flash Image) API cost on AvalAI?

The Nano Banana (Gemini 2.5 Flash Image) API on AvalAI costs $0.30 per 1M input tokens and $2.50 per 1M output tokens.

What is the token cost for Nano Banana (Gemini 2.5 Flash Image)?

Current AvalAI pricing for Nano Banana (Gemini 2.5 Flash Image) is $0.30 / 1M tokens for input and $2.50 / 1M tokens for output.

What is the Nano Banana (Gemini 2.5 Flash Image) context window?

The recorded maximum input context for Nano Banana (Gemini 2.5 Flash Image) is 32,768 tokens.

What are the rate limits for Nano Banana (Gemini 2.5 Flash Image) on AvalAI?

On tier 5, Nano Banana (Gemini 2.5 Flash Image) on AvalAI supports up to 250 requests per minute and 10,000,000 tokens per minute.

What features does Nano Banana (Gemini 2.5 Flash Image) support on AvalAI?

Nano Banana (Gemini 2.5 Flash Image) on AvalAI supports Function calling, Parallel function calling, PDF input, Prompt caching, Structured output, System messages, Tool choice, URL context, Vision.

What account tier is required to use Nano Banana (Gemini 2.5 Flash Image) on AvalAI?

Calling Nano Banana (Gemini 2.5 Flash Image) on AvalAI requires tier 1 or higher.

Third-party data and freshness

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