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LLM ComparisonGPT-5.5GPT Image 1

GPT-5.5 vs GPT Image 1

Compare GPT-5.5 and GPT Image 1. Build AI products powered by either model on Appaca.

Model Comparison

FeatureGPT-5.5GPT Image 1
ProviderOpenAIOpenAI
Model Typetextimage
Context Window1,000,000 tokensN/A
Input Cost
$5.00/ 1M tokens
$5.00/ 1M tokens
Output Cost
$30.00/ 1M tokens
N/A

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Strengths & Best Use Cases

GPT-5.5

OpenAI

1. Strongest Agentic Coding Model

  • State-of-the-art on Terminal-Bench 2.0 (82.7%), Expert-SWE (73.1%), and SWE-Bench Pro (58.6%), outperforming GPT-5.4 on complex coding tasks.
  • Holds context across large systems, reasons through ambiguous failures, and carries changes through surrounding codebases with fewer tokens.

2. Higher Intelligence at GPT-5.4 Latency

  • Co-designed, trained, and served on NVIDIA GB200/GB300 NVL72 systems to match GPT-5.4 per-token latency while performing at a significantly higher level.
  • Uses fewer tokens to complete the same tasks, making it more efficient as well as more capable.

3. Powerful for Knowledge Work & Computer Use

  • Scores 84.9% on GDPval (44 occupations) and 78.7% on OSWorld-Verified for autonomous computer operation.
  • Excels at generating documents, spreadsheets, and reports; naturally moves across finding information, using tools, and checking output.

4. Scientific Research Co-Scientist

  • Leading performance on GeneBench, BixBench, and FrontierMath; helped discover a new proof about Ramsey numbers verified in Lean.
  • Strong enough to meaningfully accelerate progress at the frontiers of biomedical and mathematical research.

GPT Image 1

OpenAI

1. State-of-the-Art Image Generation

  • Produces high-quality, detailed images optimized for realism, style control, and prompt fidelity.
  • Designed to handle complex visual scenes, compositions, and lighting conditions.

2. Natively Multimodal Architecture

  • Can understand and reason over both text and images as inputs.
  • Ideal for workflows like:
    • Editing based on reference images
    • Expanding sketches or mockups
    • Visual concept development

3. Flexible Output Resolutions & Quality Levels

  • Supports multiple resolutions, including:
    • 1024x1024
    • 1024x1536
    • 1536x1024
  • Offers three quality tiers (Low, Medium, High) to optimize for:
    • Cost efficiency
    • Speed
    • Maximum detail

4. Multiple Pricing Models

  • Pay-per-token for multimodal input:
    • Text input tokens
    • Image input tokens
  • Pay-per-image generation for final output:
    • Low, Medium, and High quality tiers
  • Enables businesses to balance cost and output needs.

5. Broad Use Cases

  • Product photography and marketing assets
  • Illustration, concept art, and creative ideation
  • UX/UI mockups
  • Style-guided image creation
  • Generating reference images for design or storytelling

6. Supported Across Major API Endpoints

  • Available via:
    • Chat Completions
    • Responses
    • Realtime
    • Assistants
    • Images (generations, edits)
  • Allows tight integration into automated creative pipelines or user-facing apps.

7. Simplified Model Behavior for Stability

  • No streaming, function calling, structured outputs, or fine-tuning.
  • Focused solely on high-quality image generation without extra logic layers.

8. Consistent Results via Snapshots

  • Supports snapshots for version locking.
  • Ensures long-term reproducibility across production pipelines.

9. Ideal For

  • Designers, marketers, and creatives
  • Product teams needing image assets
  • App builders integrating image generation workflows
  • Agencies producing visual content at scale