CATEGORY · 47 SERVICES

AI & ML platforms

Compare included quotas, restrictions and official provider documentation.

Free allowance

Free static HTML/JavaScript Spaces hosted on Hugging Face for demos, portfolios and ML interfaces, without managed runtime compute

Keep in mind

Static Spaces are free for everyone. Creating CPU-backed Gradio/Docker compute Spaces normally requires a paid account tier, even though CPU Basic hardware itself lists a zero hourly rate; limited eligible ZeroGPU exceptions exist. GPUs, model inference and persistent compute are not part of this static tier.

Free allowance

Free input and output tokens for eligible Gemini models; Google AI Studio access

Keep in mind

Gemini Developer API Free eligibility, per-model token billing and rate limits vary by current model, geography and request mode. No broad promise of unlimited free API use; free-tier content may be used to improve Google products. Cloud billing is separate for paid-tier access.

Free allowance

10.000 Workers AI Neurons/day across eligible inference models (resets daily at 00:00 UTC)

Keep in mind

Free neuron allowance covers only eligible Workers AI models; requests above it fail until reset or upgrade to Workers Paid, which bills excess neurons. Some frontier models require Workers Paid or prepaid AI Gateway credits even before daily free allocation is exhausted. Standard Workers request/CPU quotas also apply.

Free allowance

100K observability events/month; 24 CPU hours/month; 10 GB data egress/month; 15-day data retention; unlimited users, projects and deployments

Keep in mind

Starter is $0/month but usage above monthly allowances is pay-as-you-go: $10/100K observability events, $0.35/CPU hour and $0.10/GB egress. Set credit top-up/auto-top-up cautiously; a persistent always-on server is $100/project. Model/Gateway tokens, storage and other metered services have separate charges. Card requirement and commercial-use terms remain unconfirmed.

Free tier
Free allowance

10.000 requests/month; 1 GB storage; 1 seat and 1 organization; 7-day data retention

Keep in mind

Free tier ingests up to 10 logs/minute; API access, alerts, and longer retention require paid plans. Homepage mentions a 7-day trial for premium features; card requirement and commercial-use rights for Hobby need confirmation.

Free tier
Free allowance

100K tool calls/month and 50.000 trigger events/month using your own OAuth app, API key or MCP; 3 team members; unlimited connected accounts; 1 million sandbox LLM tokens/month

Keep in mind

Composio-managed apps have smaller included allowances (20.000 tool calls and 10.000 trigger events/month); third-party provider and Instant Tool charges may apply separately; Hobby pauses at its usage cap. Commercial-use terms not independently confirmed.

Free allowance

Rate-limited free inference API; for openai/gpt-oss-120b: 30 requests/minute, 1.000 requests/day, 8.000 tokens/minute and 200K tokens/day; limits vary by model and organization.

Keep in mind

Free limits vary by model and organization; exceeding quota returns HTTP 429. Batch/Flex and higher rate limits require paid Developer tier. Check model-specific commercial-use terms.

Free allowance

25.000 spans/month; up to 10 team members; 60-day data retention; agent tracing, evaluation suites and playground.

Keep in mind

Cloud data region is US. Additional spans are not included on Free; Pro Cloud is paid. Commercial-use terms for hosted Free are not explicitly confirmed; Ollie coding harness trial is separate from the ongoing Opik Free Cloud allowance.

Free tier
Free allowance

25.000 trace spans/month; 1 GB ingestion/month; 15-day retention; unlimited users and evaluations; Signal 10 issues/month.

Keep in mind

SaaS Free tier has span and ingestion quotas, short retention, one space and community support. Paid Pro starts at $50/month for higher limits; hosted Free commercial-use terms require confirmation.

Free allowance

25+ free models with chat and API access; 50 free-model requests/day and 20 requests/minute without purchased credits; up to 5 workspaces.

Keep in mind

Free model availability and provider routing may change; failed requests count toward daily cap. Buying at least $10 credits raises free-model allowance to 1.000 requests/day. Free endpoints may retain prompts; commercial rights and output licenses depend on each underlying model/provider; no SLA.

Free allowance

50.000 events/month; 2 users; 14-day data access; 3 scenarios, 3 simulations and 3 custom evals.

Keep in mind

Each LLM call, tool call, retrieval, evaluation or simulation step counts as an event. Developer has limited retention and evaluation quotas; paid Growth adds capacity. Commercial-use rights for hosted Developer require confirmation.

Free self-hosted software
Free allowance

Apache-2.0 open-source LLM inference and serving engine; unlimited self-hosted inference subject to own hardware capacity; no vendor-hosted free compute included.

Keep in mind

Requires own compute (typically supported GPU or CPU build), storage and model weights. Infrastructure and model downloads may cost money; each model has separate license and commercial-use restrictions; no free hosted API credits.

Free self-hosted software
Free allowance

Apache-2.0 open-source Kubernetes inference platform for predictive and generative AI models, with standardized inference APIs and optional Knative scale-to-zero; no vendor-imposed model-serving request or seat quota in the self-hosted software.

Keep in mind

You supply and pay for Kubernetes nodes, GPUs/CPUs, storage, network, observability, backups and model downloads; model weights have separate licenses. Knative-based serverless mode requires additional cluster components. No managed inference compute is included.

Free self-hosted software
Free allowance

Apache-2.0 open-source ML/GenAI experiment tracking, model registry, evaluation and tracing; no software license, seat or experiment quota when self-hosted.

Keep in mind

Operate and secure your own tracking server, database and artifact storage; cloud infrastructure and third-party model/API calls are not included. This is not a managed hosting allowance.

Free self-hosted software
Free allowance

Apache-2.0 framework for packaging and serving AI/ML model inference APIs, batch jobs and multi-model pipelines; no software license fee or per-model quota when self-hosted.

Keep in mind

Supply and pay for your own CPU/GPU, network and model storage; model weights may have separate licenses. BentoCloud managed compute is not included; anonymous framework usage telemetry can be disabled.

Free self-hosted software
Free allowance

Apache-2.0 open-source model serving and inference APIs on Ray; run locally, on-premises or on your own Kubernetes/compute infrastructure with no software request quota.

Keep in mind

Requires your own CPU/GPU capacity and Ray deployment; large models, accelerators, storage and external APIs cost extra. Ray Serve is not a fully managed free inference service.

Free self-hosted software
Free allowance

Apache-2.0 community-maintained Kubernetes-native AI/ML platform distribution; self-host training, notebooks and ML pipeline components without a software subscription.

Keep in mind

Requires a Kubernetes cluster and substantial infrastructure and operational resources; managed vendor distributions and enterprise support may cost extra. Some experimental subprojects are not production-ready.

Free allowance

Apache-2.0 open-source multi-type data annotation for text, images, audio, video and time series; run community edition on your own infrastructure without a vendor-imposed labeling task quota.

Keep in mind

Self-hosting, annotation storage and machine-learning backends are your responsibility and may incur costs. Enterprise collaboration, advanced review, governance and managed cloud features are separate paid offerings; this listing is community software only.

Free allowance

Apache-2.0 open-source ML/AI pipeline framework and self-managed metadata/orchestration stack for reproducible training, tracking and deployments; no vendor-imposed local pipeline-run quota.

Keep in mind

The open-source framework and local/self-hosted deployment are distinct from paid ZenML Pro/Cloud offerings. You manage pipeline orchestrators, artifact stores, compute, metadata storage and integrations; external cloud/AI costs apply.

Free self-hosted software
Free allowance

Apache-2.0 open-source retrieval-augmented generation and document-ingestion engine with self-hosted Docker deployment; no software subscription or per-document vendor quota.

Keep in mind

Recommended starting resources are 4 CPU cores, 16 GB RAM and 50 GB disk; Elasticsearch/Infinity and database dependencies require maintenance. LLM/embedding API and infrastructure costs are separate.

Free allowance

MIT-licensed local model runner and API for downloading and running supported LLMs and embedding models on your own computer or server, with no vendor-imposed local inference request quota.

Keep in mind

Local inference requires your own CPU/GPU, memory, storage and electricity. Individual model weights have their own licenses and commercial-use terms; hosted Ollama cloud models and third-party APIs may have separate limits and charges. MIT license covers the runner, not every model.

Free self-hosted software
Free allowance

MIT-licensed visual AI agent and LLM workflow builder with local Python/Docker deployment, API and MCP server capabilities; no Langflow software usage cap.

Keep in mind

Own compute, database and hosting required; third-party model/API calls and vector databases may charge separately. Secure deployments require authentication and patching.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source framework for self-hosted LLM and multimodal inference serving; no software license fees or hosted API request quota.

Keep in mind

Requires your own GPU/CPU servers and model weights; compute, electricity, cloud GPU and storage may cost money. Model-specific licenses and commercial rights are separate from SGLang's Apache-2.0 code license.

Free allowance

Free SambaCloud API access without a linked payment method: production models have 20 requests/minute, 20 requests/day and 200K tokens/day per model.

Keep in mind

Free limits are small and model-specific; requests beyond the quota are rate-limited. Linking a payment method switches to Developer tier. Preview models are evaluation-only; commercial-use terms require provider confirmation.

Free self-hosted software
Free allowance

Apache-2.0 self-hosted model-serving software for language, speech and multimodal models; no software-enforced monthly request quota; OpenAI-compatible API, CLI and web UI.

Keep in mind

Self-hosting requires your own CPU/GPU, RAM, storage and operations; some model weights, runtimes or integrations have separate licenses and costs. Enterprise features and support are separate.

Free allowance

MIT-licensed local LLM inference engine and OpenAI-compatible llama-server with no software-enforced request quota; runs on your own CPU/GPU hardware.

Keep in mind

Bring your own hardware, storage and energy; model weights have separate licensing and usage restrictions. Commercial rights for the MIT software do not imply commercial rights for every model.

Free self-hosted software
Free allowance

Free MIT-licensed self-hosted model inference engine with OpenAI-compatible API and no software-enforced request or token quota; supports CPU-only or GPU hardware.

Keep in mind

You supply and pay for hardware, compute, electricity, storage and model weights. Individual model licenses and optional external services may restrict commercial use or add charges; the MIT core license is separate.

Free self-hosted software
Free allowance

MIT-licensed LiteLLM SDK and self-hosted gateway outside enterprise/; OpenAI-compatible routing to multiple LLM providers without LiteLLM software usage fees.

Keep in mind

enterprise/ code and paid enterprise features require a separate license; upstream LLM API tokens and self-hosted infrastructure are not free.

Free self-hosted software
Free allowance

Self-hostable community platform for AI workflows, agents, RAG pipelines and LLM applications using Docker Compose; no vendor-imposed community software workflow quota.

Keep in mind

Modified Apache-2.0 Dify Open Source License: multi-tenant workspace hosting requires commercial authorization, and frontend logos/copyright must remain intact. Minimum documented setup 2 CPU cores and 4 GiB RAM; infrastructure, external models and APIs cost extra. Distinct from Dify Cloud.

Free allowance

Apache-2.0 open-source Python model-definition library for local inference and training across text, image, audio and multimodal models; no library subscription or per-inference vendor charge.

Keep in mind

Model weights and datasets have their own licenses, access gates and commercial restrictions; check each model separately. Local CPU/GPU, storage, cloud hosting and optional paid model/API endpoints are not included.

Free allowance

Free local LLM inference and fine-tuning with Apache-2.0 core; Unsloth Studio components are AGPL-3.0, with no bundled paid GPU or hosted compute.

Keep in mind

Local training/inference needs compatible hardware, GPU memory and model weights; cloud GPUs, hosted inference and third-party model APIs may charge separately. AGPL-3.0 Studio and model-license obligations apply.

Free allowance

MIT-licensed cross-platform machine-learning inference runtime with CPU and supported hardware acceleration for ONNX models; no vendor software API quota or license seat fee.

Keep in mind

Run inference on your own devices or infrastructure; model weights, GPU/accelerator hardware, cloud compute and third-party services may cost extra. Some distribution builds collect usage telemetry; model licenses are separate.

Free allowance

BSD-3-Clause open-source inference server for serving TensorRT, ONNX, PyTorch, TensorFlow and other models over HTTP/gRPC with dynamic batching; no software request quota.

Keep in mind

Run and pay for your own CPU/GPU machines, model weights, networking and storage; no hosted inference credits included. Some optimized backends, hardware drivers and NVIDIA AI Enterprise services have separate licenses or costs.

Free allowance

Apache-2.0 open-source runtime and model optimization toolkit for local CPU, Intel GPU and NPU inference with Python/C++ APIs; no software inference quota.

Keep in mind

Compute hardware, model licenses, electricity and any optional cloud hosting are separate; some accelerators need supported drivers. OpenVINO telemetry can be opted out; no free hosted model API is included.

Free self-hosted software
Free allowance

Apache-2.0 open-source feature store with offline feature retrieval and online feature serving; no software license fee or vendor-enforced feature count quota.

Keep in mind

You operate the feature server and select online/offline stores; cloud warehouses, Redis/databases, infrastructure and managed services may incur separate charges.

Free allowance

Free Apache-2.0 Python ML/LLM evaluation framework with 100+ metrics, local reports and self-hosted monitoring dashboard; no vendor-hosted row quota for the self-managed software.

Keep in mind

Self-hosting requires your own compute, storage and operations. Evidently Cloud, team collaboration, alerting and enterprise features are separate hosted/paid offerings; optional external LLM judge APIs can incur charges.

Free allowance

Apache-2.0 local CLI for dataset/model versioning, reproducible pipelines and ML experiment tracking using Git; no per-seat software license or vendor-imposed data-version quota.

Keep in mind

DVC CLI is free software, not free hosted object storage or compute. Optional AWS S3, GCS, Azure, remote servers and Git hosting may charge for storage, requests, egress or compute; DVC Studio is a separate offering.

Free allowance

Apache-2.0 Python workflow framework with local execution, experiment tracking, versioning, and workflow steps; no software subscription or execution-count cap for local runs.

Keep in mind

Cloud-scale execution on AWS, Azure, Kubernetes or other providers requires separately provisioned compute, object storage, orchestration and associated charges. This listing covers the free local framework, not managed cloud compute.

Free self-hosted software
Free allowance

Apache-2.0 self-managed experiment tracking, data management, orchestration, scheduling and ML pipelines; the open-source server and SDK have no vendor-hosted free resource quota.

Keep in mind

You must operate your own server, storage, agents, GPU/CPU resources and dependencies; ClearML's separately hosted or enterprise services may have different pricing and feature limits.

Free allowance

Apache-2.0 Python library for code-based and tool-calling AI agents, local agent orchestration, model adapters and sandbox integrations; no software usage quota.

Keep in mind

Model inference, hosted endpoints, E2B/Modal/Blaxel sandboxes and compute may charge separately. Code execution requires careful sandboxing and security review; the free library does not include free hosted LLM tokens.

Free allowance

MIT-licensed open-source Python framework for document ingestion, retrieval-augmented generation, data indexing and agent workflows, usable locally without a software seat or project quota.

Keep in mind

The framework does not include free hosted LLM inference, embedding APIs, vector databases or cloud infrastructure; selected model providers and LlamaCloud hosted services can bill separately. Configure local models and storage for an entirely self-operated setup.

Free allowance

MIT-licensed local document parsing and conversion for PDFs, Office files, images and more into structured documents, Markdown or JSON; no vendor software license fee or hosted API quota.

Keep in mind

Local CPU/GPU, memory, model downloads and storage are required; external inference APIs or hosted infrastructure may charge. Individual model weights can have different licenses and commercial-use restrictions; verify each model separately.

Free allowance

Apache-2.0 local Python framework for sentence embeddings, semantic search, reranking and model training; no library subscription or per-request quota.

Keep in mind

Pretrained models have independent licenses and possible gated downloads; verify model commercial-use terms separately. Local CPU/GPU resources, hosted inference endpoints, training and cloud infrastructure are not included.

Free allowance

Apache-2.0 Python library for local diffusion-model inference and training pipelines for images, video and audio; no software license fee or per-inference quota imposed by the library.

Keep in mind

Model checkpoints have separate licenses, usage restrictions and sometimes gated access; check each model before commercial use. GPUs, cloud compute, model downloads and hosted inference APIs are not free with this library.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-hosted LLM gateway, prompt and tool versioning, tracing, evaluation and audit logging; no software usage quota or expiry stated

Keep in mind

Bring your own Postgres, Redis, server resources and AI provider API keys; provider inference and infrastructure may incur charges. Hosted AcruxCore is a separate offering. Production deployment requires configured secrets, database and reverse proxy; no free hosted capacity is included.

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