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GPT Image 1.5 — AI Detection Benchmark

GPT Image 1.5 is OpenAI's latest image generation model integrated into ChatGPT, featuring improved realism and C2PA content credentials.

Avg Detection Rate
7
Detectors Tested
1
Undetected

Best & Worst Detectors for GPT Image 1.5

Services Using GPT Image 1.5

Benchmark Methodology

GPT Image 1.5 images were tested across 7 AI detectors using a curated dataset of AI-generated and real photographs. The model uses 1 watermark type (DALL-E Watermark).

Each detector classifies images as AI-generated or real. We measure the detection rate — the percentage of GPT Image 1.5 images correctly identified as AI-generated. Higher rates mean the detector catches GPT Image 1.5 content more reliably.

See full benchmark methodology

What is GPT Image Generation?

GPT Image Generation refers to OpenAI's native image creation capability integrated directly into ChatGPT and GPT-4o. Unlike DALL-E which operates as a separate model, this represents OpenAI's evolution toward unified multimodal AI where text and image generation work seamlessly together.

The current implementation combines the conversational intelligence of GPT-4o with advanced image generation, allowing for iterative refinement and context-aware creation directly within chat conversations.

Key Features

Native Integration

  • Built directly into ChatGPT interface
  • No separate tool switching required
  • Conversational image refinement
  • Context-aware generation

Technical Capabilities

  • Resolution: Up to 1792x1024 (landscape) or 1024x1792 (portrait)
  • Quality: High-detail photorealistic and artistic outputs
  • Speed: Fast generation (typically under 15 seconds)
  • Accuracy: Excellent text rendering in images

Unique Advantages

  • Iterative editing: "Make the sky bluer" type commands
  • Context memory: References previous images in conversation
  • Style consistency: Maintains style across multiple generations
  • Text in images: Industry-leading text accuracy

C2PA Content Credentials

OpenAI implements C2PA (Coalition for Content Provenance and Authenticity) content credentials for all generated images:

What is C2PA?

  • Industry standard for content authenticity
  • Cryptographically signed metadata
  • Includes generation information
  • Machine and human verifiable

Implementation

ChatGPT-generated images include:

  • Manifest: Signed by OpenAI
  • Generator info: Model identification
  • Timestamp: Creation time
  • Claim generator: OpenAI attribution

Verification

  • Check at contentcredentials.org
  • Use C2PA verification tools
  • Look for "cr" icon in supporting apps
  • API-based verification available

Detecting ChatGPT Images

C2PA Detection

ConditionDetection Rate
Original file99%+
Re-saved (preserving metadata)95%+
Screenshot0% (metadata lost)
Social media uploadVariable

Statistical Detection

Even without C2PA metadata:

  • AI pattern analysis: 70-85%
  • Style recognition: 65-80%
  • Artifact detection: 60-75%

Combined Approaches

  • With C2PA: 95%+ detection
  • Without C2PA: 65-85% detection
  • Heavily processed: 50-70% detection

GPT Image Generation vs DALL-E 3

FeatureGPT Image (ChatGPT)DALL-E 3 API
InterfaceChat-integratedAPI calls
IterationsConversationalNew requests
ContextFull chat historyPer-request
PricingChatGPT subscriptionPer-image
WatermarkC2PAC2PA
Resolution1792x1024 max1792x1024 max
Text accuracyExcellentExcellent

Removing Detection Markers

C2PA Metadata Removal

C2PA metadata can be removed through:

  1. Screenshot capture - Creates new image without metadata
  2. Re-saving without metadata - Many editors strip C2PA
  3. Format conversion - Some formats don't preserve C2PA
  4. Social media upload - Many platforms strip metadata

Statistical Pattern Removal

  1. Image reconstruction - Process through another AI
  2. Spectral editing - Target frequency patterns
  3. Neural filtering - AI-based pattern removal
  4. Multi-step processing - Combine techniques

Effectiveness

MethodC2PA RemovalStatistical Reduction
Screenshot100%0%
Metadata strip100%0%
Basic processing100%10-25%
Advanced processing100%40-60%
Neural reconstruction100%50-70%

Use Cases

Content Creation

  • Blog and article illustrations
  • Social media graphics
  • Marketing materials
  • Educational content

Design Work

  • Concept visualization
  • Mockup creation
  • Logo exploration
  • Brand asset ideas

Creative Projects

  • Storyboard creation
  • Character design concepts
  • Scene composition
  • Artistic exploration

Limitations

Content Restrictions

  • No public figure likenesses
  • No copyrighted character reproductions
  • Violence/adult content filtered
  • Brand logo limitations

Technical Limitations

  • Resolution caps
  • Generation limits based on plan
  • Occasional refusals on edge cases
  • Style consistency can vary

Comparison with Competitors

FeatureChatGPTMidjourneyGeminiFirefly
Text in imagesExcellentPoorGoodGood
PhotorealismVery GoodExcellentGoodVery Good
Artistic stylesGoodExcellentFairGood
IterationsExcellentLimitedGoodGood
Watermark typeC2PANoneSynthIDC2PA
Price$20/mo$10-30/moFree+$5-23/mo

Our Detection & Removal Service

Detection

Our platform analyzes ChatGPT-generated images for:

  • C2PA content credentials
  • OpenAI generation signatures
  • Statistical AI patterns
  • Model-specific artifacts

Removal

Our processing effectively removes detection markers:

  • Complete C2PA metadata stripping
  • Statistical pattern reduction
  • Quality-preserving algorithms
  • Format optimization

Upload your ChatGPT-generated image to verify its AI origin or process it for reduced detectability while maintaining visual quality.

Frequently Asked Questions

Test GPT Image 1.5 Images in the Arena

Upload a GPT Image 1.5 image and see how detectors perform in real time.