Mercury 3
The diffusion LLM that scaled 40x without slowing down
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Mercury 3 is the most capable diffusion LLM released to date. It outperforms GPT-6 Luna and Claude Haiku 5.5 while running 4–8x faster at 1,000+ tokens per second.
PH · launched Oct 22, 2026 · 112 upvotes (top 1%) · 0 views
Niche: large language models · 191 launches, 4 in the last 7 days ▼ -33% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Commercial product
- API
- Artificial Intelligence
- Development
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More like this: all 191 launches in large language models →
Could you build this?
No Mercury 3 is a new diffusion-based language model whose performance comes from novel architecture research and very large-scale pretraining, not from application code.
What it would actually take: Building a comparable model requires research in discrete diffusion language modeling, a large curated pretraining corpus, and a multi-thousand-GPU training cluster with inference kernels optimized for throughput. This is frontier ML research and infrastructure work that a solo builder cannot replicate with AI-assisted coding.
Competitors
Other products that read as similar to this one : 71 launches clear the similarity bar, closest 8 shown.
Attention rank: #5 of 72 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 306 days after the earliest competitor.
- Mercury Edit 2 · ph · 2026-04-04 · 171 upvotes · similarity 0.47
- Spectra Super Intelligence · ph · 2026-10-17 · 1 upvotes · similarity 0.40
- keys-Mac-TensorFold-MiniMax-H3-MLX · github · 2026-10-04 · 26 upvotes · similarity 0.39
- HyperFlow · ph · 2026-09-19 · 2 upvotes · similarity 0.39
- Inception Mercury Voice · ph · 2026-10-01 · 1 upvotes · similarity 0.39
- Digital to Wave: Wave computing-Memory · ph · 2026-09-14 · 1 upvotes · similarity 0.38
- wasserman-spark-director-h3-speed-recipe · github · 2026-09-12 · 18 upvotes · similarity 0.38
- MiniMax H3-Image · ph · 2026-11-11 · 112 upvotes · similarity 0.38
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