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
5
matched automatically
Top fit
97
Google Gemini API
Sources
9
canonical links retained
Access
Free/open
filtered automatically
Updated
Jun 26, 2026
listed in sitemap
Best overall radar pick
Google Gemini API
Highest automated fit score using source-backed task evidence and radar signals.
Best API or hosted option
Google Gemini API
Strong candidate when the source metadata indicates API or hosted-service availability.
Best open-source option
NVIDIA NIM Model Catalog
Strong candidate when open weights, GitHub, permissive license, or self-hosting signals are visible.
Best developer momentum
Google Gemini API
Strong candidate with fresh GitHub, Hub, Product Hunt, or radar momentum.
| # | Candidate | Type | Access | Source | Fit | Updated | Why it matched | Evidence |
|---|---|---|---|---|---|---|---|---|
| 01 | Google Gemini APIGoogle API service | service | Paid API | Official service page | RDR97 | Jun 26, 2026 | Matched llm api, model api, function calling; 2 source links; official service signal; access model: Paid API | ai.google.dev |
| 02 | NVIDIA NIM Model CatalogNVIDIA inference platform | service | Free endpoint | Official inference catalog | RDR81 | Jun 26, 2026 | Matched llm api, model api, inference api; 3 source links; official inference catalog signal; access model: Free endpoint | build.nvidia.com |
| 03 | OpenRouter APIOpenRouter API service | service | Paid API | Official service page | RDR78 | Jun 26, 2026 | Matched llm api, model api, inference api; 2 source links; official service signal; access model: Paid API | openrouter.ai |
| 04 | GrokBuildMJW/ironcladPython repository | repo | Open source | GitHub | RDR61 | Jun 22, 2026 | Matched tool calling, structured output; 1 source link; access model: Open source; freshly updated | github.com |
| 05 | kartikkabadi/opencode-go-proxyPython repository | repo | Open source | GitHub | RDR58 | Jun 24, 2026 | Matched chat completions, responses api; 1 source link; access model: Open source; freshly updated | github.com |