Kiln AI alternatives
6 evaluation tools in the same lane as Kiln AI, ranked by editorial score.
MA
Maxim AI
Evaluation · Multi-model
7.1
End-to-end evaluation, simulation, and observability platform for shipping production-grade AI agents.
Freemium· Developer: Free · Professional: $29 /seat /month · Business: $49 /seat /month · Enterprise: Customagent-evaluationllm-observability
AA
Athina AI
Evaluation · Multi-model
8.1
Collaborative LLM evaluation and observability platform for teams shipping AI features to production.
Freemium· Starter free (10k logs/mo); Pro & Enterprise customllm-evaluationprompt-management
LA
LangFast
Evaluation · Multi-model
7.0
No-signup LLM playground for testing, comparing, and versioning prompts against your own API keys.
Paid· One-time lifetime ~$60-$120; 14-day money-backprompt-testingprompt-versioning
AG
Agenta
Evaluation · Multi-model
6.9
Open-source LLMOps platform for prompt engineering, evaluation, and observability in one workspace.
Freemium· Hobby: $0 forever · Pro: $29 /month · Business: $299 /month · Enterprise: Custom · Open source: Free foreverprompt-engineeringllm-evaluation
GI
Giskard
Evaluation · Multi-model
8.2
Continuous AI red teaming platform that stress-tests LLM agents for vulnerabilities before they hit production.
Freemium· Open-source free tier; Giskard Hub enterprise pricing on requestllm-red-teamingagent-security-testing
PF
Prompt Foundry
Evaluation · OpenAI + Anthropic (multi-model)
7.1
Prompt management and side-by-side LLM evaluation for OpenAI and Anthropic models.
Freemium· Free tier (10 prompts, 500 evals/mo); Pro $15/user/mo; Enterprise customprompt-managementmodel-comparison