LangSmith Alternatives (2026)
https://smith.langchain.com3 alternatives listed2 of 3 are AI3 of 3 free or freemiumTop use case: AI Context Management (2 of 3)
All alternatives to LangSmith
Track LLM costs by feature, model and customer
Your AI provider invoice is one number. It can’t tell you which feature ran it up, which customer costs more than they pay, or why last Tuesday doubled. LLMtrack answers that. Add one line after each LLM call and every request shows up priced within a second, broken down by feature, model and...

AcruxCore: Open-Source LLMOps for Engineering Teams
AcruxCore is an open-source LLMOps platform for teams that run AI applications in production. It puts prompt management, an AI gateway, tracing, a tool catalog and evaluation in one platform, so a team does not need a separate product for each job. WHAT YOU CAN DO WITH ACRUXCORE Prompts - Version...

A reasoning computer with a verifiable hash chain
SDI is a protocol and machine that makes AI reasoning an owned, auditable asset instead of exhaust. A Reckoner runs any LLM one governed turn at a time: the model proposes reasoning in a published grammar, a deterministic compile gate checks safety, a work floor, and structural alignment, and each...
LangSmith alternatives with an API
3 of these list an API: LLMtrack, AcruxCore and SDI Reckoner.
Free and freemium LangSmith alternatives
3 of the 3 LangSmith alternatives listed here have a free or freemium plan: LLMtrack, AcruxCore and SDI Reckoner.