Maxim AI vs Langfuse vs Braintrust vs LangWatch
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Maxim AI
Agent evaluation, simulation and observability in one workflow
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Langfuse
Open-source LLM observability and analytics
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Braintrust
LLM evaluation and prompt management for production
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LangWatch
OpenTelemetry-native LLMOps platform for tracing, evals and agents
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| RECATOOLS Score | 7.5 / 10 | 8.4 / 10 | 7.5 / 10 | 7.5 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Freemium | Open Source | Freemium | Freemium |
| Free tier | — | — | — | — |
| Paid from | — | — | — | — |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✗ | ✓ | ✗ | ✓ |
| Free to use | ✗ | ✓ | ✓ | ✓ |
| Users | — | — | — | — |
| Founded | — | 2023 | 2023 | — |
| Maker | — | — | — | — |
| Verdict | Maxim's pitch is a single loop instead of stitching together three tools: a prompt playground, an agent simulator that runs conversations against synthetic personas, and production tracing that catches regressions before... |
Langfuse is a leading open-source LLM observability platform covering tracing, prompt management, evaluations, cost tracking and analytics, with framework-agnostic SDKs that work well alongside LangChain, LlamaIndex or r... |
Braintrust is an evaluation, observability and prompt-iteration platform for teams building LLM-powered products, offering systematic evals, logging, datasets, scoring and a playground that bring engineering rigour to ot... |
LangWatch's most interesting move isn't a feature, it's the pricing shift it made in February 2026: away from per-trace billing (the model Langfuse and LangSmith both use, which can spike hard as usage grows) toward seat... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.