GPT Image 2 vs Seedream 4.0: side-by-side summary
GPT Image 2, from OpenAI, released Apr 2026, scores 104 on our photo-anchored quality scale, where a real photograph is 100. Average API price $0.058 / img across 3 providers. License: Proprietary.
Seedream 4.0, from ByteDance, released Sep 9, 2025, scores 57 on our photo-anchored quality scale, where a real photograph is 100. Average API price $0.03 / img across 4 providers. License: Proprietary.
Both scores come from blind pairwise tests on the same 48 scenes between 21 August and 11 September 2026: 576 pairs and 1,727 judgements, each pair judged 3 times.
Score
- GPT Image 2: 104
- Seedream 4.0: 57
Price
- GPT Image 2: $0.058 / img
- Seedream 4.0: $0.03 / img
Vendor
- GPT Image 2: OpenAI
- Seedream 4.0: ByteDance
Released
- GPT Image 2: Apr 2026
- Seedream 4.0: Sep 9, 2025
GPT Image 2 model details, scores and pricingSeedream 4.0 model details, scores and pricing