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New Models Added: Gemini 3 Pro Image, Gemini 3.1 Flash Image Stable, and Qwen3-Max

Date: 2026-06-05 / (1405-03-15)

Summary

We announce the addition of three new models. Google's gemini-3-pro-image (Nano Banana Pro) and gemini-3.1-flash-image (Nano Banana 2) are now available as stable aliases, graduating from their preview releases with identical capabilities and pricing. Alibaba's qwen3-max flagship model is also available for complex reasoning and agentic workflows.

Details

Google (Gemini)

Gemini 3 Pro Image (Nano Banana Pro) — Stable Release

gemini-3-pro-image is the stable release of gemini-3-pro-image-preview, previously announced in our November 20, 2025 update. The stable alias delivers the same capabilities and pricing as the preview model, providing a reliable option for professional, production-grade image generation and editing. It remains the leading model for rendering Persian characters in images with near-perfect accuracy.

Feature	Details
Model ID	`gemini-3-pro-image`
Alias	Nano Banana Pro
Max output	Images up to 4K resolution (4096x4096px), plus text responses
Inputs	Text prompts, reference images
Outputs	Images (1K-4K resolution) and text
Input pricing	$2.00 / 1M tokens (text), $2.00 / 1M tokens (image input, ~$0.067 per image)
Cached input pricing	$0.50 / 1M tokens
Output pricing	$12.00 / 1M tokens (text), $0.134 per 1K-2K image, $0.24 per 4K image
Supported endpoints	`v1/chat/completions`, `v1beta/`

Key Features:

Advanced Text Rendering: Renders clear, legible text in images including Persian characters with near-perfect accuracy
Studio-Quality Control: Fine control over composition, lighting, color grading, and aspect ratios
Real-World Knowledge: Leverages Google Search for accurate, grounded image generation
Resolution Support: Generate images up to 4K resolution (4096x4096px)
Image Editing: Comprehensive editing including aspect ratio adjustments, lighting changes, and subject consistency
Default "Thinking" Process: Refines composition before generation for optimal results
Production-Ready: Stable alias suitable for long-term integrations

Gemini 3.1 Flash Image (Nano Banana 2) — Stable Release

gemini-3.1-flash-image is the stable release of gemini-3.1-flash-image-preview, previously announced in our February 27, 2026 update. The stable alias delivers high-fidelity image generation and advanced editing optimized for speed and high-volume developer workflows, serving as the high-efficiency counterpart to Gemini 3 Pro Image.

Feature	Details
Model ID	`gemini-3.1-flash-image`
Alias	Nano Banana 2
Max output	Images up to 4K resolution (4096x4096px), plus text responses
Inputs	Text prompts, reference images
Outputs	Images (512px-4K resolution) and text
Input pricing	$0.50 / 1M tokens (text), $0.50 / 1M tokens (image input)
Cached input pricing	$0.25 / 1M tokens
Output pricing	$3.00 / 1M tokens (text), $60.00 / 1M tokens (image output)
Per-image pricing	$0.0672 per 1K-2K image, $0.101 per 2K-4K image, $0.151 per 4K image
Supported endpoints	`v1/chat/completions`, `v1beta/`

Key Features:

Improved World Knowledge: Leverages broad world knowledge with web search grounding for enhanced visuals
Advanced Text Rendering: Reliable, crisp text rendering with in-image localization supporting multiple languages
Greater Creative Control: Vibrant lighting, richer textures, sharper details with configurable thinking levels
Native Aspect Ratios: Support for all existing ratios plus 4:1, 1:4, 8:1, and 1:8 ratios
New 512px Resolution: Optimized for efficiency with minimal latency for rapid iterations
Google Image Search Grounding: Generate images based on real-world image references

Understanding the Nano Banana Family

Nano Banana is the name for Gemini's native image generation capabilities. Gemini can generate and process images conversationally with text, images, or a combination of both:

Nano Banana 2 (gemini-3.1-flash-image): The high-efficiency counterpart to Gemini 3 Pro Image, optimized for speed and high-volume developer use cases
Nano Banana Pro (gemini-3-pro-image): Designed for professional asset production with advanced reasoning ("Thinking") for complex instructions and high-fidelity text
Nano Banana (gemini-2.5-flash-image): Designed for speed and efficiency, optimized for high-volume, low-latency tasks

Alibaba (Qwen)

Qwen3-Max

qwen3-max is Alibaba's flagship proprietary model from the Qwen3 Max series, designed for the most demanding applications. It offers superior reasoning, enhanced agent programming, and strong performance on complex multi-step problem-solving and tool-use workflows.

Feature	Details
Model ID	`qwen3-max`
Context window	262,144 tokens
Max output	32,768 tokens
Input pricing	$1.20 / 1M tokens
Cached input pricing	$0.10 / 1M tokens
Output pricing	$6.00 / 1M tokens
Tiered pricing	Above 32K: $2.40 / $12.00, Above 128K: $3.00 / $15.00
Input modalities	Text
Output modalities	Text
Supported endpoints	`v1/chat/completions`, `v1/responses` (partial)

Key Features:

Enhanced Agent Programming: Optimized for agentic coding and complex tool-use scenarios
Superior Reasoning: Strong performance on demanding reasoning and problem-solving tasks
Large Context Window: 262,144 tokens for extensive conversations and documents
Real-Time Web Search: Supports web search for up-to-date information (set search strategy to agent for international regions)
Hybrid Thinking: Optional reasoning mode via enable_thinking (streaming only)

Pricing Summary

Model	Input ($/1M tokens)	Cached Input ($/1M tokens)	Output ($/1M tokens)	Special Pricing
`gemini-3-pro-image`	$2.00 (text), $2.00 (image)	$0.50	$12.00 (text), $120.00 (image)	$0.134 per 1K-2K image, $0.24 per 4K image
`gemini-3.1-flash-image`	$0.50 (text), $0.50 (image)	$0.25	$3.00 (text), $60.00 (image)	$0.0672 (1K-2K), $0.101 (2K-4K), $0.151 (4K) per image
`qwen3-max`	$1.20	$0.10	$6.00	Above 32K: $2.40/$12.00, Above 128K: $3.00/$15.00

API Request/Response Examples

Gemini 3 Pro Image (OpenAI-Compatible)

bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{
    "model": "gemini-3-pro-image",
    "messages": [
      {
        "role": "user",
        "content": "Create a minimalist poster with Persian text that says \"هوش مصنوعی\" (Artificial Intelligence) in a modern, tech-inspired style with blue and white colors"
      }
    ],
    "modalities": ["image", "text"]
  }' | jq '.choices[0].message.images[0].image_url.url |= (.[0:100] + "...[TRUNCATED]")'

Response:

json

{
  "id": "chatcmpl-xyz123",
  "created": 1780000000,
  "model": "gemini-3-pro-image",
  "object": "chat.completion",
  "system_fingerprint": null,
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "I've created a minimalist tech-inspired poster featuring the Persian text \"هوش مصنوعی\" in a modern style with blue and white colors.",
        "role": "assistant",
        "images": [
          {
            "image_url": {
              "url": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABAAAAAQACAIAAADwf7zU...[TRUNCATED]",
              "detail": "auto"
            },
            "index": 0,
            "type": "image_url"
          }
        ],
        "thinking_blocks": [],
        "annotations": []
      }
    }
  ],
  "usage": {
    "completion_tokens": 1150,
    "prompt_tokens": 32,
    "total_tokens": 1182,
    "completion_tokens_details": null,
    "prompt_tokens_details": {
      "audio_tokens": null,
      "cached_tokens": null,
      "text_tokens": 32,
      "image_tokens": null
    }
  },
  "estimated_cost": {
    "unit": "0.1558000000",
    "irt": 17864.68,
    "exchange_rate": 114600
  }
}

Gemini 3 Pro Image (Native Gemini API)

You can also use the native Gemini API (v1beta) endpoint:

bash

GEMINI_API_KEY="$AVALAI_API_KEY"
MODEL_ID="gemini-3-pro-image"
GENERATE_CONTENT_API="generateContent"

cat <<EOF >request.json
{
    "contents": [
      {
        "role": "user",
        "parts": [
          {
            "text": "a cat"
          }
        ]
      }
    ],
    "generationConfig": {
      "responseModalities": ["IMAGE", "TEXT"]
    }
}
EOF

curl \
  -X POST \
  -H "Content-Type: application/json" \
  "https://api.avalai.ir/v1beta/models/${MODEL_ID}:${GENERATE_CONTENT_API}?key=${GEMINI_API_KEY}" \
  -d '@request.json' \
  --output response.json

Gemini 3.1 Flash Image (Native Gemini API)

bash

GEMINI_API_KEY="$AVALAI_API_KEY"
MODEL_ID="gemini-3.1-flash-image"
GENERATE_CONTENT_API="generateContent"

cat <<EOF >request.json
{
    "contents": [
      {
        "role": "user",
        "parts": [
          {
            "text": "a cat"
          }
        ]
      }
    ],
    "generationConfig": {
      "responseModalities": ["IMAGE", "TEXT"]
    }
}
EOF

curl \
  -X POST \
  -H "Content-Type: application/json" \
  "https://api.avalai.ir/v1beta/models/${MODEL_ID}:${GENERATE_CONTENT_API}?key=${GEMINI_API_KEY}" \
  -d '@request.json' \
  --output response.json

Qwen3-Max Example

bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{
    "model": "qwen3-max",
    "messages": [
      {
        "role": "user",
        "content": "Design an intelligent agent system that can autonomously manage complex multi-step workflows with tool invocation capabilities."
      }
    ],
    "max_tokens": 2000
  }'

Response:

json

{
  "id": "chatcmpl-abc789",
  "created": 1780000000,
  "model": "qwen3-max",
  "object": "chat.completion",
  "system_fingerprint": null,
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "Here's a comprehensive design for an intelligent agent system...",
        "role": "assistant",
        "tool_calls": null
      }
    }
  ],
  "usage": {
    "completion_tokens": 512,
    "prompt_tokens": 24,
    "total_tokens": 536,
    "completion_tokens_details": null,
    "prompt_tokens_details": {
      "cached_tokens": 0
    }
  },
  "estimated_cost": {
    "unit": "0.0031008000",
    "irt": 355.35,
    "exchange_rate": 114600
  }
}

SDK Usage Examples

Gemini Image Generation

BashPythonJavaScript

bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{
    "model": "gemini-3.1-flash-image",
    "messages": [
      {
        "role": "user",
        "content": "Create a modern logo for a tech company called \"AvalAI\" with clean typography and a minimalist design"
      }
    ],
    "modalities": ["image", "text"]
  }'

python

from openai import OpenAI

client = OpenAI(api_key="your-avalai-api-key", base_url="https://api.avalai.ir/v1")

response = client.chat.completions.create(
    model="gemini-3.1-flash-image",
    messages=[
        {
            "role": "user",
            "content": 'Create a modern logo for a tech company called "AvalAI" with clean typography and a minimalist design',
        }
    ],
    extra_body={"modalities": ["image", "text"]},
)

# Access the generated image
if hasattr(response.choices[0].message, "images"):
    images = getattr(response.choices[0].message, "images")
    for img in images:
        print(f"Image URL: {img.image_url.url[:100]}...")

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-3.1-flash-image",
  messages: [
    {
      role: "user",
      content: "Create a modern logo for a tech company called \"AvalAI\" with clean typography and a minimalist design",
    },
  ],
  modalities: ["image", "text"],
});

// Access the generated image
if (response.choices[0].message.images) {
  const images = response.choices[0].message.images;
  images.forEach((img, idx) => {
    console.log(`Image ${idx}: ${img.image_url.url.substring(0, 100)}...`);
  });
}

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

Qwen3-Max

BashPythonJavaScript

bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{
    "model": "qwen3-max",
    "messages": [
      {
        "role": "user",
        "content": "Perform a comprehensive analysis of quantum computing's potential impact on cryptography."
      }
    ],
    "max_tokens": 2000
  }'

python

from openai import OpenAI

client = OpenAI(api_key="your-avalai-api-key", base_url="https://api.avalai.ir/v1")

response = client.chat.completions.create(
    model="qwen3-max",
    messages=[
        {
            "role": "user",
            "content": "Perform a comprehensive analysis of quantum computing's potential impact on cryptography.",
        }
    ],
    max_tokens=2000,
    extra_body={"enable_thinking": False},  # Required for non-streaming requests
)

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: "qwen3-max",
  messages: [
    {
      role: "user",
      content: "Perform a comprehensive analysis of quantum computing's potential impact on cryptography.",
    },
  ],
  max_tokens: 2000,
});

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

New Models Added: Gemini 3 Pro Image, Gemini 3.1 Flash Image Stable, and Qwen3-Max ​

Summary ​

Details ​

Google (Gemini) ​

Gemini 3 Pro Image (Nano Banana Pro) — Stable Release ​

Gemini 3.1 Flash Image (Nano Banana 2) — Stable Release ​

Understanding the Nano Banana Family ​

Alibaba (Qwen) ​

Qwen3-Max ​

Pricing Summary ​

API Request/Response Examples ​

Gemini 3 Pro Image (OpenAI-Compatible) ​

Gemini 3 Pro Image (Native Gemini API) ​

Gemini 3.1 Flash Image (Native Gemini API) ​

Qwen3-Max Example ​

SDK Usage Examples ​

Gemini Image Generation ​

Qwen3-Max ​

Related Links ​

New Models Added: Gemini 3 Pro Image, Gemini 3.1 Flash Image Stable, and Qwen3-Max

Summary

Details

Google (Gemini)

Gemini 3 Pro Image (Nano Banana Pro) — Stable Release

Gemini 3.1 Flash Image (Nano Banana 2) — Stable Release

Understanding the Nano Banana Family

Alibaba (Qwen)

Qwen3-Max

Pricing Summary

API Request/Response Examples

Gemini 3 Pro Image (OpenAI-Compatible)

Gemini 3 Pro Image (Native Gemini API)

Gemini 3.1 Flash Image (Native Gemini API)

Qwen3-Max Example

SDK Usage Examples

Gemini Image Generation

Qwen3-Max

Related Links