Best Stax Alternatives in 2025
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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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Evaligo: Your all-in-one AI dev platform. Build, test & monitor production prompts to ship reliable AI features at scale. Prevent costly regressions.
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Flowstack: Monitor LLM usage, analyze costs, & optimize performance. Supports OpenAI, Anthropic, & more.
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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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Companies of all sizes use Confident AI justify why their LLM deserves to be in production.
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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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For teams building AI in high-stakes domains, Scorecard combines LLM evals, human feedback, and product signals to help agents learn and improve automatically, so that you can evaluate, optimize, and ship confidently.
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Build AI apps and chatbots effortlessly with LLMStack. Integrate multiple models, customize applications, and collaborate effortlessly. Get started now!
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BenchX: Benchmark & improve AI agents. Track decisions, logs, & metrics. Integrate into CI/CD. Get actionable insights.
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Build, manage, and scale production-ready AI workflows in minutes, not months. Get complete observability, intelligent routing, and cost optimization for all your AI integrations.
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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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besimple AI instantly generates your custom AI annotation platform. Transform raw data into high-quality training & evaluation data with AI-powered checks.
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Stably's specialized AI automates web app testing. Create self-healing tests in plain English, catch complex bugs, & ship with total confidence.
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Evaluate & optimize LLMs & AI agents with Patronus AI. Research-grade tools ensure quality, safety, and reliability for production.
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Developers: Get trusted AI answers backed by Stack Overflow's community knowledge. stackoverflow.ai offers verified, up-to-date coding solutions.
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Build & deploy secure enterprise AI agents easily with Stack AI's no-code platform. Automate complex workflows & boost efficiency. SOC 2 compliant.
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Athina AI is an essential tool for developers looking to create robust, error-free LLM applications. With its advanced monitoring and error detection capabilities, Athina streamlines the development process and ensures the reliability of your applications. Perfect for any developer looking to enhance the quality of their LLM projects.
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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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Evaluate & improve your LLM applications with RagMetrics. Automate testing, measure performance, and optimize RAG systems for reliable results.
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Maxim is an end-to-end AI evaluation and observability platform, empowering modern AI teams to ship products with quality, reliability, and speed
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PromptTools is an open-source platform that helps developers build, monitor, and improve LLM applications through experimentation, evaluation, and feedback.
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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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Struggling to ship reliable LLM apps? Parea AI helps AI teams evaluate, debug, & monitor your AI systems from dev to production. Ship with confidence.
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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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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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ConsoleX is a unified LLM playground that incorporates AI chat interfaces, LLM API playground, and batch evaluation, supporting all mainstream LLMs and debugging function callings and many enhanced features than the official playgrounds.
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Empower advanced AI workflows with Msty Studio. Get privacy-first control, local & cloud models, and persistent context for your data.
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Debug LLMs faster with Okareo. Identify errors, monitor performance, & fine-tune for optimal results. AI development made easy.
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Accelerate AI development with Scale AI's trusted data, training, & evaluation tools. Build better AI faster.
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Literal AI: Observability & Evaluation for RAG & LLMs. Debug, monitor, optimize performance & ensure production-ready AI apps.