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Automated best-of radar

Best Free LLM APIs options.

Candidates with a source-backed free tier, free endpoint, free trial, pretrained download, open weights, open-source license, or self-hosted path. Automated radar for model APIs, reasoning models, structured output, function calling, context windows, and provider releases. Rankings use existing source-backed radar data and do not invent prices, benchmark scores, release dates, or capabilities.

Candidates
6
matched automatically
Top fit
94
Google Gemini API
Sources
10
canonical links retained
Access
Free/open
filtered automatically
Updated
Aug 21, 2026
waiting for more evidence
All12Free/open6Paid API8Open source4

LLM APIs decision paths

Methodology
Best LLM APIslong context, function calling, structured output, hosted APIs, and cost-sensitive apps.Free LLM APIsFree tier, trial, open-weight, downloadable, or self-hosted signals when sources support them.Open-source LLM APIsOpen-source, open-weight, downloadable, or self-hosted candidates with retained source URLs.Paid API LLM APIsHosted API and enterprise access paths without invented prices, limits, or benchmark claims.Compare LLM APIsSide-by-side verdicts, source coverage, freshness, access labels, and evidence caveats.Track LLM APIsGet private RSS alerts and API-access interest for this decision space as the radar updates.
Best overall radar pick

Google Gemini API

Highest automated fit score using source-backed task evidence and radar signals.

Score94serviceGoogle
Best API or hosted option

Google Gemini API

Strong candidate when the source metadata indicates API or hosted-service availability.

Score94serviceGoogle
Best open-source option

NVIDIA NIM Model Catalog

Strong candidate when open weights, GitHub, permissive license, or self-hosting signals are visible.

Score78serviceNVIDIA
Best developer momentum

AtomicBot-ai/atomic-agent

Strong candidate with fresh GitHub, Hub, Product Hunt, or radar momentum.

Score69repoAtomicBot-ai
#CandidateTypeAccessSourceFitUpdatedWhy it matchedEvidence
01Google Gemini APIGoogle API serviceservicePaid APIOfficial service pageScore94Jun 26, 2026Matched llm api, model api, function calling; 2 source links; official service signal; access model: Paid APIai.google.dev
02NVIDIA NIM Model CatalogNVIDIA inference platformserviceFree endpointOfficial inference catalogScore78Jun 26, 2026Matched llm api, model api, inference api; 3 source links; official inference catalog signal; access model: Free endpointbuild.nvidia.com
03OpenRouter APIOpenRouter API serviceservicePaid APIOfficial service pageScore74Jun 26, 2026Matched llm api, model api, inference api; 2 source links; official service signal; access model: Paid APIopenrouter.ai
04AtomicBot-ai/atomic-agentTypeScript repositoryrepoOpen sourceGitHubScore69Aug 21, 2026Matched long context, context window; 1 source link; access model: Open source; open weights signalgithub.com
05kartikkabadi/opencode-go-proxyPython repositoryrepoOpen sourceGitHubScore55Jun 24, 2026Matched chat completions, responses api; 1 source link; access model: Open source; open weights signalgithub.com
06WiseriaAI/pie-ai-agentTypeScript repositoryrepoOpen sourceGitHubScore53Jul 12, 2026Matched function calling, tool calling; 1 source link; access model: Open source; open weights signalgithub.com

Related automated lists

All best-of pages
Inference platformsDeploy, route, host, cache, and scale AI models for production applications.Coding agentsAutomate coding, review, testing, repository changes, and developer workflows.RAG toolsBuild AI apps that retrieve, cite, and reason over private or public knowledge.

Decision pages

Methodology
Google Gemini API vs NVIDIA NIM Model CatalogLive comparisonNVIDIA NIM Model Catalog vs OpenRouter APILive comparisonGoogle Gemini API vs OpenRouter APILive comparisonNVIDIA NIM Model Catalog vs AtomicBot-ai/atomic-agentLive comparisonBest Google Gemini API alternativesAlternativesBest NVIDIA NIM Model Catalog alternativesAlternativesBest OpenRouter API alternativesAlternativesBest AtomicBot-ai/atomic-agent alternativesAlternatives
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