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We’re building TensorZero Autopilot, an automated AI engineer that analyzes LLM observability data, optimizes prompts and models, sets up evals, and runs A/B tests.

It dramatically improves the performance of LLM agents on every single benchmark we’ve tried.

Read more below.
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TensorZero retweeted
Just wanted to give a huge shoutout to @TensorZero! you guys have really done an amazing job.

De facto recommendation on every client project we work on right now.
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TensorZero retweeted
it was a full house last night! (pun intended)

inaugural @TensorZero ai poker night co-hosted with @BessemerVP
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You might be overpaying 5.3x+ for Claude Opus 4.7!

Our CEO @gabrielbianconi found out that on tool-heavy workloads, you're paying 5.3x more for Claude Opus 4.7 than GPT 5.4.

The common metric is to compare cost per million tokens. But different providers use different d the same input produces wildly different token counts.

Read our blog below to find out how you are being charged and how to actually know what you're paying for. 👇
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LLM evaluators are often noisy and weakly correlated with real-world outcomes.

Noisy evaluators have limited value for production decisions that hinge on judging a single output (e.g. guardrails).

However, even (very) noisy evaluators can reliably tell you which agent is better y can still help you pick the best variant to deploy and improve it over time.

Learn how ↓
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Michelle Hui is joining us with a focus on developer relations. She recently graduated from Cornell with BS & MS degrees in computer science, during which she organized large tech events, conducted ML research, and held product internships (Alphabet / Wing, UN).

Welcome to the team, @michellehui!
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"If your security relies on your code being obfuscated, you're telling yourself a fake story."

Our CTO Viraj Mehta (@thebigmehtaphor) chats about AI scaling, open source, and being a technical founder following his PhD in Reinforcement Learning at CMU.

In our in-depth s:

🔸What to look for in engineering hires when coding is largely solved
🔸How AI has increased the hiring bar and what you can do to meet it
🔸Why you should build in Rust to make your code more secure and error-free
🔸Why open source is still an important business model
🔸 Why AI is still scaling... and there's continued "juice to squeeze" in AI

Full conversation in the thread ↓
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TensorZero is committed to open source. We sit down with our CTO Viraj @thebigmehtaphor. Takeaways:

1. Thinking closed-source code == security is a LIE. You still need to build from first principles and fundamentally secure code.

2. Open-source keeps more eyes on your code, bugs and vulnerabilities.

3. Open-source code allows developers and their agents to understand your codebase and integrate with it better. Close-source hamstrings users to look only at documentation.

@mhui1109
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Can an automated AI engineer autonomously debug and optimize an LLM pipeline in 5 minutes?

Last night, ours did: it cut errors in ~half during its first live demo.

TensorZero Autopilot (our automated AI engineer) analyzed hundreds of historical LLM traces to identify failure , and verified improvements with an LLM judge — autonomously, in <5 minutes.

With more time, it can do much more: from model selection to fine-tuning to adaptive experimentation, TensorZero Autopilot dramatically improves the performance of LLM agents across diverse tasks.

Learn more below ↓
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Replying to @TensorZero
Read more about this work on the TensorZero Blog:

tensorzero.com/blog/automated…
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Replying to @TensorZero
TensorZero Autopilot is powered by our open-source LLMOps platform that unifies an LLM gateway, observability, optimization, evaluation, and experimentation.

The open-source project is used by companies ranging from frontier AI startups to the Fortune 10 and powers ~1% of the global LLM API spend today.

github.com/tensorzero/ten…
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