Best Sandbox Fusion Alternatives in 2025
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Securely run AI code with Daytona's instant (90ms) sandboxes. Isolate risks, scale workflows. API & Git integration. Start building confidently!
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Unlock the full potential of LLM apps with Langfuse. Trace, debug, and improve performance with observability and analytics. Open-source and customizable.
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Hopx Sandboxes provide secure, isolated micro-VMs for 100ms code execution. Safely run AI, LLM-generated & untrusted code at scale.
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Build powerful AI agents safely. E2B offers secure, instant cloud runtimes for executing AI-generated code with Firecracker microVMs.
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Open-Fiesta: The open-source AI chat playground for developers. Compare & evaluate multiple AI models side-by-side. Self-host for full control.
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The fastest way to build, share and scale Comfy UI workflows
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Build cheaper, faster, smarter custom AI models. FinetuneDB helps you fine-tune LLMs with your data for better performance & lower costs.
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Test, compare & refine prompts across 50+ LLMs instantly—no API keys or sign-ups. Enforce JSON schemas, run tests, and collaborate. Build better AI faster with LangFast.
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Deepchecks: The end-to-end platform for LLM evaluation. Systematically test, compare, & monitor your AI apps from dev to production. Reduce hallucinations & ship faster.
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BenchLLM: Evaluate LLM responses, build test suites, automate evaluations. Enhance AI-driven systems with comprehensive performance assessments.
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Companies of all sizes use Confident AI justify why their LLM deserves to be in production.
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Boost Language Model performance with promptfoo. Iterate faster, measure quality improvements, detect regressions, and more. Perfect for researchers and developers.
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LM Studio is an easy to use desktop app for experimenting with local and open-source Large Language Models (LLMs). The LM Studio cross platform desktop app allows you to download and run any ggml-compatible model from Hugging Face, and provides a simple yet powerful model configuration and inferencing UI. The app leverages your GPU when possible.
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Fusion AI integrates top AI models for seamless tasks. From content creation to data analysis, it offers high-quality results. Flexible pricing, great support.
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Launch AI products faster with no-code LLM evaluations. Compare 180+ models, craft prompts, and test confidently.
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Laminar: The open-source platform for AI agent developers. Monitor, debug & improve agent performance with real-time observability, powerful evaluations & SQL insights.
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Langbase empowers any developer to build & deploy advanced serverless AI agents & apps. Access 250+ LLMs and composable AI pipes easily. Simplify AI dev.
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Transformer Lab: An open - source platform for building, tuning, and running LLMs locally without coding. Download 100s of models, finetune across hardware, chat, evaluate, and more.
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LightEval is a lightweight LLM evaluation suite that Hugging Face has been using internally with the recently released LLM data processing library datatrove and LLM training library nanotron.
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Braintrust: The end-to-end platform to develop, test & monitor reliable AI applications. Get predictable, high-quality LLM results.
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OpenCoder is an open-source code LLM with high performance. Supports English & Chinese. Offers full reproducible pipeline. Ideal for devs, educators & researchers.
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ModelFusion allows you to chat with top LLM models like GPT-4o and Claude 3.5 simultaneously
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Snowglobe: AI conversation simulation for LLM chatbots. Test at scale, uncover risks, generate data, & ship reliable AI faster.
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BAML helps developers build 10x more reliable, type-safe AI agents. Get structured outputs from any LLM & streamline your AI development workflow.
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LiveBench is an LLM benchmark with monthly new questions from diverse sources and objective answers for accurate scoring, currently featuring 18 tasks in 6 categories and more to come.
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StarCoder and StarCoderBase are Large Language Models for Code (Code LLMs) trained on permissively licensed data from GitHub, including from 80+ programming languages, Git commits, GitHub issues, and Jupyter notebooks.
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Unlock the full potential of LLM Spark, a powerful AI application that simplifies building AI apps. Test, compare, and deploy with ease.
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FuseLLM-7B, which is the fusion of three open-source foundation LLMs with distinct architectures, including Llama-2-7B, OpenLLaMA-7B, and MPT-7B.
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Your All-In-One Solution for Data Science & ML Development, Deployment, and Data Pipelines in the Cloud.
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ManyLLM: Unify & secure your local LLM workflows. A privacy-first workspace for developers, researchers, with OpenAI API compatibility & local RAG.