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Fastino
Purpose-built AI models for fast, structured, and secure developer workflows
About Fastino
Fastino (fastino.ai) is a developer-first AI company operating from Palo Alto, California, that provides high-performance, task-optimized language models. Founded in 2024 by CEO Ash Lewis and COO George Hurn-Maloney, the company emerged from stealth in November of that year with a mission to solve the inefficiencies of large, general-purpose AI models for specific enterprise tasks. Lewis's journey to creating Fastino was sparked by his previous startup, DevGPT, where the high cost of using generalist LLM APIs proved to be economically unsustainable, highlighting a critical need for more efficient, purpose-built solutions.
The company has secured significant financial backing, starting with a $7 million pre-seed round in November 2024, led by Insight Partners and Microsoft's M12, with notable participation from NEA and others. This was followed by a $17.5 million seed round in May 2025, led by Khosla Ventures, bringing Fastino's total funding to approximately $25 million. This capital is being used to expand its research and development team, which includes talent from Google DeepMind, Stanford, Carnegie Mellon, and Apple Intelligence.
Fastino's core offering is a suite of what it calls Task-Specific Language Models (TLMs). Unlike conventional large language models (LLMs) that require expensive GPU clusters, Fastino's models are engineered to run on CPUs or NPUs with near-instant inference, reportedly making them up to 99 times faster on specific tasks. This unique architecture, which blends traditional transformer concepts with proprietary breakthroughs, allows for training on low-end gaming GPUs for under $100,000. The business targets enterprise AI developers who require accuracy, speed, and security for production workloads. Its business model deviates from the industry-standard per-token pricing by offering a flat monthly subscription, which includes a free tier for developers to integrate the models into their workflows.
The TLM API provides models for a range of specific enterprise functions, including summarization, function calling for agentic systems, converting unstructured text to JSON, and PII redaction. These models are designed for high accuracy in tasks like document parsing, real-time search intelligence, and ensuring content compliance. For enterprise clients, Fastino offers flexible deployment options, allowing the models to be run within a customer's Virtual Private Cloud (VPC), on-premise, or at the edge, ensuring data control and security.
Source: Dealroom company dataKnowledge graph
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Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SEED✓Equity / VC | May 2025 | $18M | $70M | Insight Partners · Valor Equity Partners · Khosla Ventures · Lukas Biewald | ↗ |
| SEED✓Equity / VC | Nov 2024 | $7M | $28M | Insight Partners · CRV · NEA · Valor Equity Partners | ↗ |
Growth signals
Latest recorded traffic for Fastino is 11K monthly website visits, up 31% over the last three months. Fastino's team grew 86.7% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed8 investors entered at this stage
Insight Partners
M12
CRV
NEA
Valor Equity Partners
Thomas Dohmke
Khosla Ventures
Lukas Biewald
Other known investors2 additional known investors
Loup Ventures
Scott Johnston
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Fastino on X, ranked by likes and reposts, corporate channels excluded.
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