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Key Highlights

  • ⚡ 4x Speed Boost: Image generation is 4x faster than GPT-Image-1, significantly reducing wait times
  • 🎯 Precision Editing: Supports localized edits while maintaining lighting, composition, and character consistency
  • 📝 Enhanced Text Rendering: Much better at rendering small, dense text for posters and promotional materials
  • 💰 Better Pricing: 20% cheaper than predecessor - $0.01 (low), $0.04 (standard), $0.17 (HD) per image
  • 🚀 Available Now: API.YI launched on December 17th with official pricing plus additional discounts through recharge promotions

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Background

On December 16, 2025, OpenAI officially released GPT Image 1.5, the next major upgrade after DALL-E 3 and GPT-Image-1. This release comes amid fierce competition in the AI image generation space, following Google Gemini 3 and other competitors, with OpenAI accelerating its product iteration pace. GPT Image 1.5’s core improvements focus on speed, precision, and cost. Official data shows the new model generates images 4x faster while introducing industry-leading precision editing capabilities. Users can make localized modifications to uploaded images without affecting visual consistency in other areas. This breakthrough feature will significantly boost efficiency for designers, creators, and developers. The API.YI team completed model integration immediately and officially opened GPT Image 1.5 API access to all users on December 17, 2025. Pricing matches OpenAI’s official rates while supporting additional discounts through recharge promotions, providing developers with better value.

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Detailed Analysis

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Core Features

⚡ 4x Speed Boost

Generation speed is 4x faster than GPT-Image-1, significantly reducing the wait time from prompt to image. Perfect for rapid iteration and batch generation scenarios.

🎯 Precision Editing

Supports localized editing for specific regions (like adjusting expressions or changing lighting) while keeping composition, color tone, and character appearance completely consistent in other areas, avoiding full regeneration.

📝 Enhanced Text Rendering

Dramatically improved rendering quality for small fonts and dense text, ideal for generating posters, promotional materials, and infographics with lots of text.

💰 20% Cost Reduction

API costs are 20% lower than predecessor, with three quality tiers at $0.01 (low), $0.04 (standard), $0.17 (HD), further improving cost-effectiveness.

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Performance Highlights

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1. Generation Speed Comparison

GPT Image 1.5 offers 4x faster generation compared to its predecessor. For example, with standard quality square images:
ModelAverage Generation TimeSpeed Improvement
GPT-Image-1 (DALL-E 3)~12 seconds-
GPT Image 1.5~3 seconds4x ⚡
This means developers can save significant time in batch generation and rapid iteration scenarios.

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2. Precision Editing Capabilities

GPT Image 1.5 introduces industry-leading post-production editing features, allowing users to:
  • Upload an existing image
  • Use natural language to describe the parts to modify (e.g., “make the person smile”, “change sky to night”, “adjust lighting to be cooler”)
  • The model only modifies specified areas while maintaining visual consistency (character appearance, composition, color tone, etc.) in other parts
This feature is particularly suitable for scenarios requiring fine-tuning of image details, avoiding uncontrollable changes caused by “full regeneration” in traditional methods.

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3. Text Rendering Improvements

Compared to its predecessor, GPT Image 1.5 performs much better when rendering small fonts and dense text. Suitable for these scenarios:
  • Poster design (including titles, subtitles, body text)
  • Promotional material creation (product descriptions, price tags)
  • Infographics (data visualization, flowcharts)
  • Social media graphics (images with text captions)

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Technical Specifications

SpecificationGPT Image 1.5
Supported Image SizesSquare, landscape, portrait (multiple resolutions)
Input MethodText prompts + optional reference images
Editing FeaturesSupports localized editing, maintains visual consistency
API Endpointgpt-image-1.5
AvailabilityAll ChatGPT users + API access

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Practical Applications

🎨 Design & Creation

  • Rapid product prototype generation
  • Creative posters and promotional materials
  • Social media graphics and covers
  • Brand visual asset creation

📊 Content Marketing

  • Blog post illustrations
  • E-commerce product display images
  • Rapid advertising material iteration
  • Infographics and data visualization

🖼️ Image Editing

  • Fine-tune image details
  • Modify character expressions and poses
  • Adjust lighting and color tones
  • Add/modify text content

🚀 Batch Generation

  • Game asset batch production
  • Multi-version design comparison
  • A/B testing material preparation
  • Large-scale content production

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Code Example

Here’s a Python example using API.YI to call GPT Image 1.5: 
import openai

# Configure API.YI endpoint
client = openai.OpenAI(
    api_key="your-apiyi-api-key",  # Replace with your API.YI key
    base_url="https://api.apiyi.com/v1"
)

# Example 1: Text-to-Image Generation
response = client.images.generate(
    model="gpt-image-1.5",
    prompt="An astronaut cat floating in space, background with colorful nebula, high-definition realistic style",
    size="1024x1024",
    quality="standard",  # Options: standard (medium quality) or hd (high quality)
    n=1
)

print(f"Image URL: {response.data[0].url}")

# Example 2: Edit Existing Image (Precision Editing)
# Note: Image needs to be converted to base64 or provided as URL
edit_response = client.images.edit(
    model="gpt-image-1.5",
    image=open("original.png", "rb"),  # Original image
    prompt="Make the cat's expression happier, keep everything else unchanged",
    size="1024x1024",
    n=1
)

print(f"Edited Image URL: {edit_response.data[0].url}")

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Best Practices

Prompt Optimization Tips:
  • Describe scene, style, color tone, lighting and other details in detail
  • Use keywords like “high-definition”, “realistic”, “illustration style” to control art style
  • When editing, clearly specify the area to modify to avoid full regeneration
  • Use precision editing instead of regeneration for multiple iterations
Usage Restrictions:
  • Follow OpenAI usage policies, prohibited from generating violent, sexual, or copyright-infringing content
  • Commercial use must comply with relevant copyright and licensing regulations
  • API calls have rate limits, specific limits depend on account tier

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Pricing & Availability

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Pricing Information

GPT Image 1.5 is 20% cheaper than its predecessor GPT-Image-1, with the following pricing:
Quality TierResolution ExamplePrice per ImageUse Cases
Low1024x1024$0.01Quick prototypes, testing iterations
Standard1024x1024$0.04Regular design, content creation
HD1024x1024 and above$0.17High-quality output, commercial use
Pricing Notes:
  • Prices based on square images (1024x1024)
  • Different sizes may have slightly different prices, see official docs for details
  • Image editing features priced same as generation
  • Data source: OpenAI official pricing (released December 16, 2025)

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Promotional Offers

Using GPT Image 1.5 on API.YI, in addition to official pricing parity, you can get extra discounts through recharge promotions:
  • Recharge $100 to receive bonus credits
  • Higher recharge amounts get higher bonus percentages (up to 20% off)
  • Visit API.YI website or contact customer service for details

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Access Channels

GPT Image 1.5 is available through:
  1. API.YI API Service (Recommended)
    • Address: api.apiyi.com
    • Direct integration with OpenAI SDK
    • Enjoy recharge promotion discounts
  2. ChatGPT Web Version
    • Available to Free, Plus, and Enterprise users
    • Request image generation or editing directly in conversations
  3. OpenAI Official API
    • Official pricing, no additional discounts

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Summary & Recommendations

GPT Image 1.5 is a significant upgrade in OpenAI’s image generation capabilities, with 4x speed boost, precision editing, and 20% price reduction making it one of the most competitive image generation models on the market.
  • ✅ Designers and Creators: Use precision editing to quickly adjust details, avoiding repeated generation
  • ✅ Content Marketing Teams: Batch generate high-quality illustrations, accelerate content production
  • ✅ Developers: Integrate into applications to provide users with image generation and editing capabilities
  • ✅ E-commerce Professionals: Quickly create product display images and advertising materials

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Usage Recommendations

  1. Prioritize Precision Editing: For images requiring adjustments, use editing instead of regeneration to save cost and time
  2. Choose Appropriate Quality Tier: Use Low/Standard for testing and prototypes, HD for final releases
  3. Optimize Prompts: Detailed prompts significantly improve generation quality and reduce retries
  4. Leverage Recharge Promotions: Recharge on API.YI for additional discounts, reducing long-term usage costs
Information Sources & Dates:
  • OpenAI official blog release date: December 16, 2025
  • API.YI integration launch date: December 17, 2025
  • Official announcement: openai.com/index/new-chatgpt-images-is-here/
  • Technical analysis sources: TechCrunch, SiliconANGLE, VentureBeat and other tech media
Experience the powerful capabilities of GPT Image 1.5 now - visit the API.YI website to get your API key, or use it directly in ChatGPT!