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tensorzero
tensorzero
Rust2024–2026
tensorzero / tensorzero · Archived

tensorzero

TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation.

5Distinct people
9Mentions
0Explicit recommenders
11.7KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 11:56:56 AM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month9 dated mentions

Observed mentions: 2024-09-16 15:25:03 UTC to 2026-06-13 14:01:19 UTC.

0122024-09-01 00:00:00 UTC to 2024-10-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsSep 20242024-10-01 00:00:00 UTC to 2024-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-01 00:00:00 UTC to 2024-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2025-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-02-01 00:00:00 UTC to 2025-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-01 00:00:00 UTC to 2025-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-01 00:00:00 UTC to 2025-05-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2025-05-01 00:00:00 UTC to 2025-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-06-01 00:00:00 UTC to 2025-07-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2025-07-01 00:00:00 UTC to 2025-08-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 commentsJul 20252025-08-01 00:00:00 UTC to 2025-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-09-01 00:00:00 UTC to 2025-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-10-01 00:00:00 UTC to 2025-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-11-01 00:00:00 UTC to 2025-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-12-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-01 00:00:00 UTC to 2026-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-01 00:00:00 UTC to 2026-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-03-01 00:00:00 UTC to 2026-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-04-01 00:00:00 UTC to 2026-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-05-01 00:00:00 UTC to 2026-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-01 00:00:00 UTC to 2026-07-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 commentsJun 2026

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Sep 20242024-09-01 00:00:00 UTC2024-10-01 00:00:00 UTC110
Oct 20242024-10-01 00:00:00 UTC2024-11-01 00:00:00 UTC000
Nov 20242024-11-01 00:00:00 UTC2024-12-01 00:00:00 UTC000
Dec 20242024-12-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
Jan 20252025-01-01 00:00:00 UTC2025-02-01 00:00:00 UTC000
Feb 20252025-02-01 00:00:00 UTC2025-03-01 00:00:00 UTC000
Mar 20252025-03-01 00:00:00 UTC2025-04-01 00:00:00 UTC000
Apr 20252025-04-01 00:00:00 UTC2025-05-01 00:00:00 UTC202
May 20252025-05-01 00:00:00 UTC2025-06-01 00:00:00 UTC000
Jun 20252025-06-01 00:00:00 UTC2025-07-01 00:00:00 UTC202
Jul 20252025-07-01 00:00:00 UTC2025-08-01 00:00:00 UTC202
Aug 20252025-08-01 00:00:00 UTC2025-09-01 00:00:00 UTC000
Sep 20252025-09-01 00:00:00 UTC2025-10-01 00:00:00 UTC000
Oct 20252025-10-01 00:00:00 UTC2025-11-01 00:00:00 UTC000
Nov 20252025-11-01 00:00:00 UTC2025-12-01 00:00:00 UTC000
Dec 20252025-12-01 00:00:00 UTC2026-01-01 00:00:00 UTC000
Jan 20262026-01-01 00:00:00 UTC2026-02-01 00:00:00 UTC000
Feb 20262026-02-01 00:00:00 UTC2026-03-01 00:00:00 UTC000
Mar 20262026-03-01 00:00:00 UTC2026-04-01 00:00:00 UTC000
Apr 20262026-04-01 00:00:00 UTC2026-05-01 00:00:00 UTC000
May 20262026-05-01 00:00:00 UTC2026-06-01 00:00:00 UTC000
Jun 20262026-06-01 00:00:00 UTC2026-07-01 00:00:00 UTC211

What Hacker News says

9 sources
TensorZero | https://github.com/tensorzero/tensorzero | Founding Member of Technical Staff | NYC (onsite) | Full-time TensorZero is an open-source stack for industrial-grade LLM applications. It unifies an LLM gateway, observability, optimization, evaluation, and experimentation. Open Roles: ‣ Back-end Engineering (Rust) ‣ Design Engineering ‣ Developer Relations (DevRel) Engineering ‣ Front-end Engineering (React) ‣ Product Engineering (Full-Stack) What we offer: ‣ Vast majority of your work → open source ‣ Years of runway ‣ Small and entirely technical team: former Rust compiler maintainer, ML researchers (Stanford, CMU, Oxford, Columbia) with thousands of citations, decacorn CPO ‣ $200-300k base + up to 1% equity + benefits ‣ Onsite (5 days) in New York (Williamsburg, Brooklyn) More information: https://tensorzero.com/candidate-brief A
Read the rest
In Ask HN: Who is hiring? (July 2025)
SEEKING FREELANCER TensorZero | https://github.com/tensorzero/tensorzero | Staff Front-end / Design Engineer | Remote or Onsite (NYC) | Full-time or Part-time TensorZero creates a feedback loop for optimizing LLM applications — turning production data into smarter, faster, and cheaper models. We're looking for a contract / freelance Staff Front-end / Design Engineer with the following skillset: ‣ Must have: expert in TypeScript, React, and web fundamentals ‣ Nice to have: familiar with LLMs, experience with Vite / React Router V7 (RemixJS) / Tailwind What we offer: ‣ Vast majority of your work → open source ‣ Flexible arrangement: remote or onsite (NYC), full-time or part-time ‣ Small and entirely technical team: former Rust compiler maintainer, ML researchers with 1000's of citations, decacorn CPO ‣ Engagement expected to last a few mont
Read the rest
hs ‣ Compensation in line with staff+ experience Also hiring full-time employees: https://news.ycombinator.com/item?id=43569646 Apply: hello@tensorzero.com
In Ask HN: Freelancer? Seeking freelancer? (April 2025)
TensorZero | https://github.com/tensorzero/tensorzero | Founding Member of Technical Staff | NYC (onsite) | Full-time TensorZero creates a feedback loop for optimizing LLM applications — turning production data into smarter, faster, and cheaper models. We're looking for a Founding Member of Technical Staff with any of the following skillsets: ‣ Back-end / Systems Engineering (Rust) ‣ Front-end / Design Engineering (React) ‣ ML Engineering / Research (Python) What we offer: ‣ Vast majority of your work → open source ‣ Years of runway ‣ Small and entirely technical team: former Rust compiler maintainer, ML researchers with 1000's of citations, decacorn CPO ‣ $200-250k base + up to 1% equity + benefits ‣ Onsite (5 days) in NYC More information: https://tensorzero.com/candidate-brief Apply: https://www.tensorzero.com/jobs
In Ask HN: Who is hiring? (April 2025)

Show HN: TensorZero – open-source data and learning flywheel for LLMs

Hi HN! We're Gabriel & Viraj, and we're excited to open source TensorZero. To be a little cheeky, TensorZero is an open-source platform that helps LLM applications graduate from API wrappers into defensible AI products. 1. Integrate our model gateway 2. Send metrics or feedback 3. Unlock compounding improvements in quality, cost, and latency It enables a data & learning flywheel for LLMs by unifying: • Inference: one API for all LLMs, with <1ms P99 overhead • Observability: inference & feedback → your database • Optimization: better prompts, models, inference strategies • Experimentation: built-in A/B testing, routing, fallbacks Our goal is to help engineers build, manage, and optimize the next generation of LLM applications: AI systems that learn from real-world experience. In addition to a Quick Start (5min) [1] and a Tutorial (30min) [
Read the rest
2], we've also published a series of complete runnable examples illustrating TensorZero's data & learning flywheel. • Writing Haikus to Satisfy a Judge with Hidden Preferences [3] – my personal favorite • Fine-Tuning TensorZero JSON Functions for Named Entity Recognition (CoNLL++) [4] • Automated Prompt Engineering for Math Reasoning (GSM8K) with a Custom Recipe (DSPy) [5] ___ [1] https://www.tensorzero.com/docs/gateway/quickstart [2] https://www.tensorzero.com/docs/gateway/tutorial [3] https://github.com/tensorzero/tensorzero/tree/main/examples/... [4] https://github.com/tensorzero/tensorzero/tree/main/examples/... [5] https://github.com/tensorzero/tensorzero/tree/main/examples/... We hope you find TensorZero useful! Feedback and questions are very welcome. If you're interested in using it at work, we'd be happy to set up a Slack channel with your team (free).
49 points · Open discussion

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