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Blacksmith (YC W24) — The fastest way to run your GitHub actions

Blacksmith helps companies run their continuous integration (CI) up to twice as fast, at half the cost. We do this by running their CI on high performance gaming CPUs. - Engineering productivity is often marred by slow CI that grows quadratically with the size of the engineering organization. - On top of this, companies pay high markups to run CI on the hyperscalers. - Consequently, companies have to run their CI on spot instances to keep costs in check.

Blacksmith is a Y Combinator company in the Winter 2024 batch. Its directory entry describes it as: The fastest way to run your GitHub Actions. The founders listed are Aditya (JP) Jayaprakash (Founder), Aditya Maru (Founder), Aayush Shah (Founder) (Y Combinator directory entry, February 13, 2024).

6 more companies from YC Winter 2024 ↓

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Blacksmith

New accelerator entry · 2024-02-13 · the record

Winter 2024
batch
3
people
Growth
stage
Unspecified
region
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What the record says

BatchWinter 2024
Announced2024-02-13
StageGrowth
StatusActive
Team size3
IndustryB2B
Sub-industryB2B -> Infrastructure
RegionsUnspecified
HiringYes
Sitehttps://blacksmith.sh/
Founded2024
YC group partnerJared Friedman

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Also in YC Winter 2024

Same batch, B2B first.

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In their words

Blacksmith helps companies run their continuous integration (CI) up to twice as fast, at half the cost. We do this by running their CI on high performance gaming CPUs. - Engineering productivity is often marred by slow CI that grows quadratically with the size of the engineering organization. - On top of this, companies pay high markups to run CI on the hyperscalers. - Consequently, companies have to run their CI on spot instances to keep costs in check. Since spot instances can get pre-empted at any point, running CI reliably on them requires significant engineering investment. Blacksmith offers CI compute that is more performant, cheaper, and reliable. With Blacksmith, companies do not have to think about CI as they scale. We are starting with GitHub Actions - today's most popular and fastest-growing CI system. With a one-line change, companies can run their CI up to twice as fast on our high-performance hardware. In addition to this, Blacksmith provides colocated warm caches along with optimizations for common CI workloads (like building and pushing Docker images). Aayush, JP and Aditya have gained deep systems and product knowledge from their time at Cockroach Labs and Faire respectively. Both these companies, with several hundred engineers, were spending in the order of millions of dollars on their CI. Yet they were riddled with slow CI and actively seeking out cheaper and faster alternatives. Blacksmith offers exactly this alternative, at a time where being lean is table-stakes for most companies.

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Blacksmith: Accepted into Y Combinator Winter 2024
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Permanent URL: https://mentionfox.com/funding/yc-blacksmith
Last updated 2026-10-29
Primary record: Y Combinator directory entry
Blacksmith (YC W24) — The fastest way to run your GitHub actions. MentionFox, 2026-10-29. https://mentionfox.com/funding/yc-blacksmith