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Vaibhav Mittal

Software Engineer focused on backend systems, AI agents, LLM gateways, developer tooling, open-source infrastructure, API design, CI/CD pipelines, observability, and distributed systems.

Joined on Jul 17, 2026

Aug 8

I Fixed a Schema Mismatch. The Negative Result Survived.

7 min read

Aug 7

The Optimization Worked on Qwen. It Failed on Llama and Tool Calls.

#ai #machinelearning #llm #opensource

11 min read

Aug 7

I Found a Runner Bug, Re-ran 200 Generations, and the Effect Survived

#ai #machinelearning #llm #opensource

9 min read

Aug 5

Constraints Cost 18 Points. Compiling the Schema Recovered 14.

#ai #machinelearning #llm #opensource

11 min read

Aug 4

Structured Output Fixed My JSON and Cut Math Accuracy by 18 Points

#ai #machinelearning #llm #opensource

8 min read

Aug 1

Why “Return Valid JSON” Is Not a Decoding Constraint

#ai #python #opensource #machinelearning

7 min read

Jul 30

I Expected JSON Grammar Masks to Kill Sampling Diversity. The Prompt Got There First.

#machinelearning #ai #llm #opensource

11 min read

Jul 27

Grammars are written in characters. Models emit tokens.

#ai #llm #machinelearning #python

8 min read

Jul 17

Self-hosting SigNoz: notes from a day of actually running it

#opentelemetry #observability #docker #python

6 min read

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