TikTok owner ByteDance has launched Seedream 4.0, its latest AI image model, on September 10, directly challenging Google’s acclaimed “Nano Banana” editor. Announced Tuesday, the new tool unifies image generation and editing into a single, faster system. The Battle of the BenchmarksByteDance claims Seedream 4.0 surpassed Google’s Gemini 2.5 Flash Image on its internal MagicBench evaluation. For global users, Seedream 4.0 is available on third-party platforms like Fal.ai, where it is priced at $0.03 per image. The aggressive pricing could be a key factor in driving adoption as ByteDance seeks to challenge established players in the hotly contested AI image market.