Alternatives to Inseq

Open-source toolkit for benchmarking vision-language models across 80+ multimodal tasks, with rankings published on the Open VLM Leaderboard.

Open-source benchmark that scores AI agents on real, multi-step software-company work tasks.

PandaProbe is open-source agent observability that traces runs, evaluates outcomes, and turns failures into validated fixes via its Repair

OpenCompass (司南) benchmarks LLMs, VLMs, and AI4S models on dated, dimension-by-dimension leaderboards

Put a hard question to three frontier models — they answer blind, cross-examine each other, and hand back the one answer that survived, with a verdict.

Open-source AI evaluation and observability for LLMs, RAG apps, AI agents, and ML models.

ViDoRe Benchmark: an open visual document retrieval benchmark and ColPali model suite for enterprise RAG evaluation.

Weights & Biases tracks ML experiments, versions models and datasets, and traces LLM apps — now inside CoreWeave Forge

Arena AI ranks chat models and coding agents on live head-to-head human votes and real agent sessions.

Compare 400+ AI models on one LLM Stats Score blending benchmarks, output speed and API pricing.

CodeClash benchmarks goal-oriented software engineering by making AI models build and evolve codebases to win 15-round arena tournaments.

OpenAI's December 2025 wet-lab evaluation where GPT-5 improved a real molecular cloning protocol 79-fold

Free AI benchmark where models build 3D voxel structures from text prompts and humans vote on spatial reasoning.

BALROG is an open ICLR-published benchmark that scores agentic LLM and VLM reasoning across seven procedurally generated games.

OpenJudge is an Apache 2.0 open-source AI evaluation framework shipping 50+ benchmark-validated graders for agents, LLMs, code, math, and multimodal models.

Open-source LLM observability: trace agents, manage prompts, and run evals on one MIT-licensed platform.

Open-source LLM observability and agent evaluation you can trace, self-host, and eval end to end.

LangWatch is an open-source LLMOps platform for agent testing, LLM evaluation and OpenTelemetry-native LLM observability.

Open source AI engineering platform for agent and LLM tracing, evaluation, prompt management, and ML lifecycle work.

Maxim AI simulates, evaluates and observes AI agents — with Bifrost, its open-source LLM gateway, for routing and guardrails.

Fiddler AI is an enterprise control plane for agent observability, inline guardrails, and auditable AI governance.

Open-source AI agent improvement: trace production runs, detect failures, investigate signals, verify fixes with evals.

Open-source LLM observability, evaluation, and cost tracking for teams shipping agentic AI

Laminar delivers open-source AI agent observability that auto-captures every LLM and tool call and surfaces failures with Signals.

Synth is a research workbench and hosted compute for optimizing coding agents with reproducible, evidence-backed evals.

Goodfire's Silico is an AI interpretability agent for reverse-engineering, debugging, and steering model internals.

Open-source Python framework that traces every AI agent span and scores runs with benchmarked, explainable LLM judges.

Open-source Python library that turns vibe checks into reproducible evaluation loops for RAG pipelines and AI agents.

Open-source OpenTelemetry tracing, versioning, and sessions for Python LLM apps—bring your own backend.

Free Hugging Face agent leaderboard ranking LLMs on planning, tool use, and multi-step agentic tasks