Dolphin announced it is sunsetting; new project creation was disabled, while existing customers were told they would continue to receive support.
SourcePublic company, workplace, funding, and market signals
Updated Jul 29, 2026
Dolphin is a YC-backed, small-team startup-in-a-box web-app builder that helps founders ship SaaS products with built-in auth, billing, storage, AI assistants, and an opinionated app architecture; it launched in November 2025 and announced it was sunsetting in February 2026.
Primary product
AI web-app builder / startup-in-a-box for SaaS products
Founded
2025
Headquarters
New York, United States
Team size
1-10
Industry
Software Development
Sub-industry
AI web-app builder / low-code application development
Offices
0 jobs at Dolphin
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Business model
Stage
YC-backed early stage
Latest round
Y Combinator Spring 2025
Y Combinator
Investors
Opinionated, engineering-heavy, and build-in-public culture focused on correctness, security, scalability, and constrained AI workflows; the team emphasizes planning, scaffolding, linting, and a single architecture rather than general-purpose code generation.
Benefits
Pricing
Freemium plus monthly credit subscriptions
Differentiators
Technology
Customers
Competitors
Dolphin announced it is sunsetting; new project creation was disabled, while existing customers were told they would continue to receive support.
SourceDolphin Blog · Feb 2026
Official shutdown notice stating Dolphin is sunsetting, new project creation is disabled, and existing customers will continue to be supported.
Dolphin Blog · Feb 2026
Engineering/process post describing how Dolphin turns incomplete bug reports into actionable reports, illustrating the product's emphasis on structured interaction.
Dolphin Blog · Feb 2026
Discusses the team's preference for repetition over DRY in AI-maintained codebases and shows the product/engineering philosophy behind Dolphin.
Dolphin Blog · Dec 2025
Explains Dolphin's opinionated architecture, including a Planner/Coder flow, scaffolding, conditional prompting, and linting to keep outputs correct and maintainable.
Dolphin Blog · Nov 2025
Launch announcement describing Dolphin as a startup-in-a-box web-app builder for founders and explaining the product thesis and initial positioning.