{"kind":"ai-dev-tools","collected_at":"2026-09-16T17:00:49Z","source":"Hand-sourced seed","note":"Tour 1 : annuaire sourcé à la main. `has_affiliate` est indicatif et à confirmer au moment de s'inscrire aux programmes (cf. QUESTIONS D15).","categories":{"observability":"Observability & tracing","gateway":"LLM gateway","eval":"Evaluation & testing","prompt":"Prompt management","guardrails":"Guardrails & safety","finetuning":"Fine-tuning platform","agents":"Agent platform","data":"Data & labeling"},"rows":[{"id":"arize-phoenix","slug":"arize-phoenix","name":"Arize Phoenix","category":"observability","category_label":"Observability & tracing","tagline":"Open-source LLM tracing and evaluation, OpenTelemetry-native.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://arize.com/pricing/","free_tier":"Phoenix is free and self-hostable","starting_price_usd":50,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":true,"affiliate_note":"Arize has a partner program (enterprise).","url":"https://phoenix.arize.com/","status":"ga"},{"id":"helicone","slug":"helicone","name":"Helicone","category":"observability","category_label":"Observability & tracing","tagline":"Open-source observability proxy for LLM apps.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.helicone.ai/pricing","free_tier":"10k requests/mo free","starting_price_usd":20,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://www.helicone.ai/","status":"ga"},{"id":"langfuse","slug":"langfuse","name":"Langfuse","category":"observability","category_label":"Observability & tracing","tagline":"Open-source LLM tracing, evals and prompt management.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://langfuse.com/pricing","free_tier":"Hobby - 50k units/mo, cloud or self-host","starting_price_usd":59,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://langfuse.com/","status":"ga"},{"id":"langsmith","slug":"langsmith","name":"LangSmith","category":"observability","category_label":"Observability & tracing","tagline":"Tracing, evals and monitoring from the LangChain team.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.langchain.com/pricing-langsmith","free_tier":"Developer - 5k traces/mo free","starting_price_usd":39,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://www.langchain.com/langsmith","status":"ga"},{"id":"traceloop","slug":"traceloop","name":"Traceloop","category":"observability","category_label":"Observability & tracing","tagline":"OpenLLMetry - open-source OpenTelemetry instrumentation for LLMs.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.traceloop.com/pricing","free_tier":"Free up to 50k spans/mo","starting_price_usd":59,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://www.traceloop.com/","status":"ga"},{"id":"w-b-weave","slug":"w-b-weave","name":"W&B Weave","category":"observability","category_label":"Observability & tracing","tagline":"LLM app tracing and evals inside Weights & Biases.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://wandb.ai/site/pricing","free_tier":"Free personal tier","starting_price_usd":50,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":true,"affiliate_note":"W&B runs a partner program.","url":"https://wandb.ai/site/weave","status":"ga"},{"id":"cloudflare-ai-gateway","slug":"cloudflare-ai-gateway","name":"Cloudflare AI Gateway","category":"gateway","category_label":"LLM gateway","tagline":"Caching, rate-limiting and analytics in front of any LLM API.","pricing_model":"free","checked":"2026-09-01","source_url":"https://developers.cloudflare.com/ai-gateway/","free_tier":"Free (usage of underlying Workers/logs may bill)","starting_price_usd":null,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://developers.cloudflare.com/ai-gateway/","status":"ga"},{"id":"kong-ai-gateway","slug":"kong-ai-gateway","name":"Kong AI Gateway","category":"gateway","category_label":"LLM gateway","tagline":"AI plugins for the Kong API gateway - routing, prompt guarding.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://konghq.com/pricing","free_tier":"Kong Gateway OSS is free","starting_price_usd":null,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://konghq.com/products/kong-ai-gateway","status":"ga"},{"id":"litellm","slug":"litellm","name":"LiteLLM","category":"gateway","category_label":"LLM gateway","tagline":"Open-source proxy - one OpenAI-format API for 100+ providers.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.litellm.ai/#pricing","free_tier":"Open-source proxy is free; self-host","starting_price_usd":250,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://www.litellm.ai/","status":"ga"},{"id":"portkey","slug":"portkey","name":"Portkey","category":"gateway","category_label":"LLM gateway","tagline":"AI gateway with routing, caching, guardrails and observability.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://portkey.ai/pricing","free_tier":"10k requests/mo, all core features","starting_price_usd":49,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":true,"affiliate_note":"Partner program available.","url":"https://portkey.ai/","status":"ga"},{"id":"braintrust","slug":"braintrust","name":"Braintrust","category":"eval","category_label":"Evaluation & testing","tagline":"Evals, prompt playground and logging for LLM products.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.braintrust.dev/pricing","free_tier":"Free - 1M trace spans, 10k scores/mo","starting_price_usd":249,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://www.braintrust.dev/","status":"ga"},{"id":"confident-ai-deepeval","slug":"confident-ai-deepeval","name":"Confident AI (DeepEval)","category":"eval","category_label":"Evaluation & testing","tagline":"Hosted platform for the open-source DeepEval framework.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.confident-ai.com/pricing","free_tier":"Free tier with limited evals","starting_price_usd":20,"pricing_note":"","open_source":true,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://www.confident-ai.com/","status":"ga"},{"id":"patronus-ai","slug":"patronus-ai","name":"Patronus AI","category":"eval","category_label":"Evaluation & testing","tagline":"Automated evaluation and guardrails for LLM systems.","pricing_model":"enterprise","checked":"2026-09-01","source_url":"https://www.patronus.ai/","free_tier":"Free trial","starting_price_usd":null,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://www.patronus.ai/","status":"ga"},{"id":"promptfoo","slug":"promptfoo","name":"Promptfoo","category":"eval","category_label":"Evaluation & testing","tagline":"Open-source CLI and library for LLM evals and red-teaming.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.promptfoo.dev/pricing/","free_tier":"Open-source, free","starting_price_usd":null,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://www.promptfoo.dev/","status":"ga"},{"id":"agenta","slug":"agenta","name":"Agenta","category":"prompt","category_label":"Prompt management","tagline":"Open-source LLMOps - prompt playground, evals, observability.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://agenta.ai/pricing","free_tier":"Free cloud tier; self-host free","starting_price_usd":49,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://agenta.ai/","status":"ga"},{"id":"latitude","slug":"latitude","name":"Latitude","category":"prompt","category_label":"Prompt management","tagline":"Open-source prompt engineering platform with evals.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://latitude.so/pricing","free_tier":"Free - 20k runs/mo","starting_price_usd":40,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://latitude.so/","status":"ga"},{"id":"promptlayer","slug":"promptlayer","name":"PromptLayer","category":"prompt","category_label":"Prompt management","tagline":"Prompt registry, versioning and analytics for teams.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.promptlayer.com/pricing","free_tier":"Free - 7-day log retention","starting_price_usd":50,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://www.promptlayer.com/","status":"ga"},{"id":"guardrails-ai","slug":"guardrails-ai","name":"Guardrails AI","category":"guardrails","category_label":"Guardrails & safety","tagline":"Open-source framework for input/output validation of LLMs.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.guardrailsai.com/","free_tier":"Open-source, free","starting_price_usd":null,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://www.guardrailsai.com/","status":"ga"},{"id":"lakera-guard","slug":"lakera-guard","name":"Lakera Guard","category":"guardrails","category_label":"Guardrails & safety","tagline":"Prompt-injection and content-safety API for LLM apps.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.lakera.ai/pricing","free_tier":"Free community tier - 10k requests/mo","starting_price_usd":999,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":true,"affiliate_note":"Lakera runs a partner program.","url":"https://www.lakera.ai/","status":"ga"},{"id":"protect-ai","slug":"protect-ai","name":"Protect AI","category":"guardrails","category_label":"Guardrails & safety","tagline":"ML/LLM security - model scanning, LLM firewall, red-teaming.","pricing_model":"enterprise","checked":"2026-09-01","source_url":"https://protectai.com/","free_tier":null,"starting_price_usd":null,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://protectai.com/","status":"ga"},{"id":"openpipe","slug":"openpipe","name":"OpenPipe","category":"finetuning","category_label":"Fine-tuning platform","tagline":"Fine-tune and deploy small models that beat GPT-4 on your task.","pricing_model":"usage","checked":"2026-09-01","source_url":"https://openpipe.ai/pricing","free_tier":"Free to start; pay per training + inference","starting_price_usd":null,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://openpipe.ai/","status":"ga"},{"id":"predibase","slug":"predibase","name":"Predibase","category":"finetuning","category_label":"Fine-tuning platform","tagline":"Fine-tune and serve open models (LoRA), built on Ludwig.","pricing_model":"usage","checked":"2026-09-01","source_url":"https://predibase.com/pricing","free_tier":"$25 free credits","starting_price_usd":null,"pricing_note":"Usage-based after free credits.","open_source":true,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://predibase.com/","status":"ga"},{"id":"together-fine-tuning","slug":"together-fine-tuning","name":"Together Fine-tuning","category":"finetuning","category_label":"Fine-tuning platform","tagline":"Fine-tune Llama, Qwen and more, then serve on Together.","pricing_model":"usage","checked":"2026-09-01","source_url":"https://www.together.ai/pricing","free_tier":"$1 free credit","starting_price_usd":null,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"Simple signup-credit referral retired mid-2025; only an application-based startup credits program remains (not a fit for a content/comparison site).","url":"https://www.together.ai/","status":"ga"},{"id":"crewai","slug":"crewai","name":"CrewAI","category":"agents","category_label":"Agent platform","tagline":"Framework and cloud for orchestrating multi-agent crews.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.crewai.com/","free_tier":"Free tier for the platform","starting_price_usd":null,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://www.crewai.com/","status":"ga"},{"id":"dify","slug":"dify","name":"Dify","category":"agents","category_label":"Agent platform","tagline":"Open-source platform for building and operating LLM apps/agents.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://dify.ai/pricing","free_tier":"Sandbox free; self-host Community edition","starting_price_usd":59,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://dify.ai/","status":"ga"},{"id":"langgraph-platform","slug":"langgraph-platform","name":"LangGraph Platform","category":"agents","category_label":"Agent platform","tagline":"Deploy and manage long-running, stateful agents.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.langchain.com/pricing","free_tier":"Free - self-serve deploys, limited","starting_price_usd":39,"pricing_note":"","open_source":false,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://www.langchain.com/langgraph-platform","status":"ga"},{"id":"llamacloud","slug":"llamacloud","name":"LlamaCloud","category":"agents","category_label":"Agent platform","tagline":"Managed parsing, indexing and retrieval from LlamaIndex.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://www.llamaindex.ai/enterprise","free_tier":"Free - 10k credits/mo","starting_price_usd":50,"pricing_note":"","open_source":true,"self_hostable":false,"has_affiliate":false,"affiliate_note":"","url":"https://cloud.llamaindex.ai/","status":"ga"},{"id":"argilla","slug":"argilla","name":"Argilla","category":"data","category_label":"Data & labeling","tagline":"Open-source data curation and feedback collection for LLMs.","pricing_model":"free","checked":"2026-09-01","source_url":"https://argilla.io/","free_tier":"Open-source, free; free on HF Spaces","starting_price_usd":null,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://argilla.io/","status":"ga"},{"id":"label-studio","slug":"label-studio","name":"Label Studio","category":"data","category_label":"Data & labeling","tagline":"Open-source data labeling for every data type, incl. LLM RLHF.","pricing_model":"freemium","checked":"2026-09-01","source_url":"https://humansignal.com/pricing/","free_tier":"Community edition free, self-host","starting_price_usd":null,"pricing_note":"","open_source":true,"self_hostable":true,"has_affiliate":false,"affiliate_note":"","url":"https://labelstud.io/","status":"ga"}]}