Doubao Seedream 4.5
next‑gen image creation and editing model
Details
- External ID
- 46132999
- Source
- HN
- Company
- —
- Product
- Doubao Seedream 4.5
- Website domain
- seedream4-5.net
- Launched
- Dec. 3, 2025
- Cohort
- —
- Upvotes
- 6
- Upvotes percentile
- 0.2652671755725191
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
Hi HN — we just open‑sourced/released (or “publicly launched”, depending on whether it's open‑source) a new image generation & editing model called Doubao‑Seedream-4.5, by Volcano Engine.Compared with 4.0, this version delivers:Better editing consistency — the subject’s fine details, lighting, and color tone are preserved even after edits;Improved portrait retouching & beautification, yielding more natural, high‑quality human images;Much improved small text generation, allowing clearer and more readable embedded text (e.g. signage, interface labels, captions);Stronger multi‑image compositing — you can combine multiple input images / prompts more reliably to produce coherent, aesthetically pleasing results;Enhanced inference performance and overall visual aesthetics — results are more precise and artistic.For creators building AI‑powered creative tools (image generators, illustration pipelines, concept‑art workflows, etc.), Doubao‑Seedream-4.5 offers a substantial upgrade over most 4.x‑era image models.We’d love feedback from the community — edge‑cases discovered, prompts that fail or succeed especially well, compositing tricks, retouching workflows, anything you find interesting.
Enrichment
- Theme
- multimodal generative ai and developer tools
- Vertical
- Horizontal
- Function
- Content generation
- Audience
- B2C
- AI stance
- AI-native
- Project type
- Commercial product
- Normalized one-liner
- image creation and editing model
- Manually corrected
- False
Could you build this?
No Training a state-of-the-art multi-modal diffusion or flow-matching image generation model like Doubao requires millions of dollars in compute, massive curated image-caption datasets, and advanced ML research teams.
What it would actually take: Building a frontier image generation foundation model requires an extensive training cluster (thousands of high-end GPUs like H100s), petabytes of filtered multimodal training data, custom diffusion/transformer architectures (e.g., DiT), and sophisticated RLHF/DPO alignment pipelines. The hard part is novel ML model architecture design, distributed training stability at scale, and custom inference optimization kernels (CUDA/Triton).
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 85 launches clear the similarity bar, closest 8 shown.
Attention rank: #80 of 86 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Looks like the first mover among its competitors.
- MAI-Image-2.5 · ph · 2026-06-06 · 241 upvotes · similarity 0.41
- Editio AI · ph · 2026-09-08 · 1 upvotes · similarity 0.39
- Ideogram 4.0 · ph · 2026-06-05 · 265 upvotes · similarity 0.39
- We Built a "Nano Banana" for 3D Editing · hn · 2026-01-30 · 5 upvotes · similarity 0.39
- V2Fun · ph · 2026-07-15 · 460 upvotes · similarity 0.38
- Foneo - AI Photo Editor · ph · 2026-09-07 · 2 upvotes · similarity 0.38
- GPTImagine 2.5 · ph · 2026-09-10 · 1 upvotes · similarity 0.38
- Doubao Say · ph · 2026-09-28 · 1 upvotes · similarity 0.38
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a content generation tool for Government yet.