Generative AI

AI observability and evaluation platform that helps teams understand, evaluate, and continuously improve AI agents and applications. Free plan includes unlimited users and evals, 25k spans and 1GB ingestion per month, 15-day retention, and Signal (10 issues per month). No credit card required. Self-hosting open-source option with Arize Phoenix.

AI-powered audio enhancer SaaS that removes noise and echo while preserving natural vocal clarity. totally Free: unlimited one-click enhancements, no login required, supports MP3/WAV/FLAC

Evals, prompt playground, and data management for Gen AI. Free plan gives upto 1,000 private eval rows/week.

Clinical AI Reference. Students have free access to the professional tool suite, which includes Open Search, Clinical Summary, Med Review, Drug Interactions, ICD-10 Codes, and Stewardship. Additionally, a free trial for the professional suite is available.

Evaluate, test, and ship LLM applications across your dev and production lifecycles. #opensource

Open-source platform to evaluate, observe, and improve LLM and AI agent apps, with tracing, evals, simulations, and guardrails. Free tier includes 50GB storage, 2K eval credits, 100K AI-gateway requests/month, 1M tokens of text agent simulation and 60 min of voice simulation, plus unlimited projects/seats and BYOK LLM-as-judge at $0 platform cost. #opensource

OpenAI-compatible API for open-source models served over the decentralized Gonka.ai GPU network. 1M+ free tokens monthly. Easy integration with many AI tools.

The best LLM monitoring platform. One format to call 200+ LLMs with 2 lines of code. 10,000 free requests every month and $0 for platform features!

Open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications. Free forever plan includes 50k observations per month and all platform features. #opensource

A LLMOps platform helping AI teams measure, monitor, and optimize LLM applications for reliability, cost-efficiency, and performance. With a powerful DSPy component, we enable seamless collaboration between engineers and non-technical teams to fine-tune and productionize GenAI products. Free plan includes all platform features, 1k traces/month and 1 workflow DSPy optimizers. #opensource

Open-source (MIT) LLM observability and evaluation platform to trace, monitor, and evaluate AI agents in production. Free Starter plan includes 20K credits/month, 30-day data retention, and unlimited seats. #opensource

AI media gateway providing unified access to leading image generation models via an OpenAI-compatible API. The platform itself is free to use with zero markup and no subscription fee. Inference costs for most models are billed at provider price, but FLUX.1 [schnell] FP8 is offered free forever with unlimited usage for registered users. Built-in failover and provider resilience included.

An LLM evaluation and observability platform with agent simulation and prompt playground. Free tier offers 10k monthly logs, access to prompt playground, simulations and evaluations via BYOK.

MediaWorkbench.ai offers 100,000 free words for Azure OpenAI, DeepSeek, and Google Gemini models, enabling users to access powerful tools for code generation, deep research, and image creation.

Onomeo gives you one key for dozens of AI models. Plug it right into tools like Cline, SillyTavern, or Open WebUI using standard OpenAI format. 35 models are completely free (60 requests / 5 hrs per user, pooled at 450 / 5 hrs across all users). Daily check-in credits let you use big models like Claude and GPT, up to a daily limit. Extra credits start at $5/month. We’re in open beta, so expect occasional instability. It’s great for casual use, but not ready to be a daily driver. Feedback is always welcome.

Provides various free AI models including DeepSeek R1, V3, Llama, and Moonshot AI. These models excel in natural language processing and are suitable for diverse development needs. Note that while these models are free to use, they are subject to rate limits. Additionally, OpenRouter offers paid models for more advanced requirements, for instance Claude, OpenAI, Grok, Gemini, and Nova.

easy-to-use, free image generation AI with free API available. No signups or API keys required, and several option for integrating into a website or workflow. #opensource

Control panel for Gen AI apps featuring an observability suite & an AI gateway. Send & log up to 10,000 requests for free every month.

AI Powered Writing Assistant. The entire platform is free as long as you bring your own API key.

Observability for AI/LLM apps built on OpenTelemetry. Traces model calls and tool steps with tokens, cost, latency and errors; send OTLP over HTTP from any language or use the TypeScript SDKs. Free plan includes 10,000 spans/month, 7-day retention, 1 project and 2 seats, no credit card.

Converts audio or video to text using AI. Generates summaries and other insights using LLMs. The free tier includes 2 transcriptions per day. You can upload files, record voice notes, or use links from YouTube, Instagram etc. The free version also supports WhatsApp, Telegram and importing files directly from cloud storages - Google Drive, Dropbox, Box and OneDrive. No API key needed. Sign up and ready to use. Also has apps for mobiles, desktops and chromebooks.

Instantly auto-fix outputs from tools like Cursor, Windsurf, and Copilot to meet your company's quality and compliance standards using guardrails built with Policy as Code. The free tier includes 100 tools calls per day to the MCP server and 25 free automated pull request reviews per day via the GitHub App.