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Comparison of OpenAI: GPT Image 2.5 Sunburst, Black Forest Labs: FLUX 3 Image
2 modelsopenaiOpenAI: GPT Image 2.5 SunburstRemove ×black-forest-labsBlack Forest Labs: FLUX 3 ImageRemove ×
What’s differentTrades longer generation time for intricate detail; supports transparent backgrounds and quality levels through max.FLUX.3 Image is Black Forest Labs' flagship image generation and editing model. It handles text-to-image and multi-reference editing with up to 10 input images, and renders at fixed resolution tiers...
DateSep 8, 2026ReleasedOct 1, 2026Released
Listed rate

$30.00/ 1M output tokens

+ $5.00 / 1M text-input tokens · $8.00 / 1M image-input tokens

OpenAI · via OpenRouter · Conditional

$0.041/ imageBlack Forest Labs · via OpenRouter · all routes ↗black-forest-labs · output image · variant=768
Provider endpoints1 endpoint →2 endpoints →
AA Image ↗2.11,221.96 ↗Text-to-image · all categories · quality=maxIndependent result95% CI 1,211.96–1,231.96 · n=13,0141,117.15 ↗Text-to-image · all categoriesIndependent result95% CI 1,105.15–1,129.15 · n=6,115
Context window400K46.9K
Max output360K42.2K
Parameters——
Structured outputSupportedNot reported
Image inputSupportedSupported
Prompt cachingSupportedNot reported

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