MyCaptionAI
Introducing GPT-Image-2.5 Sunburst (and Flare)OpenAIReleased March 20, 2026

GPT-Image-2.5 Sunburst (and Flare)

OpenAI’s premier image synthesis and conversational in-painting model, supporting pinpoint region edits and variable quality modes.

text-to-imageProprietary API$0.045 / image (Precision Editing)Context: 262.144K (262,144 tokens)
Official Model Card & DocsTry in AI Studio / PlaygroundGitHub Repository

Technical Specifications

Architecture Type
High-Precision Visual Reasoning & Editing Model
Total Parameters
Undisclosed
Context Window
262.144K (262,144 tokens)
Max Output Tokens
16.384K (16,384 tokens)
Knowledge Cutoff
October 2025
Supported Modalities
vision, image-gen, text
License & Access
OpenAI Business Terms

Benchmark Evaluations

Gen Eval
0.92
Editing Precision Score
97.4

Deep Architectural Overview

GPT-Image-2.5 Sunburst delivers professional creative production standards. It supports quality tiers from rapid drafts to ultra-high rendering, featuring sub-pixel region in-painting and layered visual prompt understanding.

Strengths & Considerations

Core Strengths
  • Highest editing precision in OpenAI lineup (97.4%)
  • Quality modes from low to max
  • Interprets multi-image references natively
Known Limitations
  • Max quality mode requires higher generation compute latency

Token & API Pricing

Input Tokens (1M)$5.00
Output Tokens (1M)$30.00
Cached Input (1M)$1.2500
Pricing is verified directly against OpenAI's developer documentation and API rate sheets.

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