Arena AI alternatives
6 evaluation tools in the same lane as Arena AI, ranked by editorial score.
LS
LLM Stats
Evaluation · Multi-model
7.9
Live leaderboard and side-by-side comparison hub for 300+ frontier LLMs across reasoning, coding, and multimodal benchmarks.
Free· Free to browse; underlying model usage billed by each providermodel-comparisonbenchmark-tracking
AA
Artificial Analysis
Evaluation · Multi-model
6.8
Independent benchmarking platform comparing AI models and inference providers across intelligence, speed, and cost.
Freemium· Pro: $417/month per seat · Enterprise: Custom pricingmodel-benchmarkingprovider-comparison
IA
Inspect AI
Evaluation · Multi-model
7.2
Open-source LLM evaluation framework from the UK AI Security Institute with 200+ built-in benchmarks.
Free· Free and open source (MIT-style license); you pay only for underlying model API usage.llm-benchmarkingagent-evaluation
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
LL
llmfit
Evaluation · Multi-model
7.0
Terminal tool that scores hundreds of open LLMs against your actual CPU, RAM, and GPU and tells you which ones will run well.
Free· Free, MIT-licensedlocal-llm-selectionhardware-benchmarking
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