TensorZero
TensorZero is an artificial intelligence company in New York, United States, founded in 2023. It has raised $22.3M across 2 rounds, most recently a $7.3M Seed in August 2025.
- Headquarters
- New York, New York
- Employees
- 1–10
- Founded
- 2023
- Business Model
- B2B
- Website
- tensorzero.com
- Total Funding
- $22.3M
- Last Round
- $7.3M SeedAug 2025
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds for this company. The full record is or through the API.
About
TensorZero built an open-source LLMOps platform that unified an LLM gateway, observability, evaluation, optimization, and experimentation into a single system, powering approximately 1% of global LLM API spend at its peak. The platform enabled a data and learning flywheel for optimizing LLM applications, turning production inference data into improved models and prompts. TensorZero also developed Autopilot, an automated AI engineer that analyzes LLM observability data and automatically optimizes prompts and models. The company raised $7.3M in seed funding in 2024 and a $15M Series A in 2025, but archived its GitHub repository in June 2026 and the product is no longer maintained.
Summary
It lists 1–10 employees. It has raised $22.3M in total across 2 rounds, most recently a $7.3M Seed round in Aug 2025.
Tech & App Stack
4 technologies & apps tracked
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Funding History
Aug 2025
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
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