cheapoS THE CHEAPSKATE CLUBSmall bills. More possibilities.
A useful model doesn't have to come with a bill. Explore free AI APIs, see what they support, and compare published benchmarks with what the Club has actually observed.
The directory
21 of 21 models
Community sample: 1 of 1 public profiles loaded (up to 20). Shared history, retrieved 2026-09-22 UTC. Sources & coverage ↓
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
dots-studio/dots-3-note-preview:freeProvider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
Provider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
Provider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
inclusionai/ling-3.0-flash-fin:freeProvider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
inclusionai/ling-3.0-flash-sante:freeProvider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
inclusionai/ling-3.0-flash-vl:freeProvider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:freeProvider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
Provider catalog
Observed by the Club
0 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
nvidia/nemotron-3.5-content-safety:freeProvider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
nvidia/nemotron-3.5-lightning:freeProvider catalog
Observed by the Club
1 cancelled and 0 unknown outcomes are excluded from the success percentage. Request success does not mean the code or task succeeded.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
thinkingmachines/inkling-small:freeProvider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
Provider catalog
Observed by the Club
Available from OpenRouter. No matching signed request reports in the sampled public profiles yet.
From browsing to building
Create an OpenRouter account and create an API key. Choose a named :free route from the directory. Check the provider's current usage limits; free access is not unlimited.
In cheapoS, open Models → Open OmniRoute. Add OpenRouter and its key in your local gateway, then return to cheapoS and refresh models. Your provider key belongs in your gateway, never on this site.
Connection guide ↗Keep Show free models only selected, choose tool-capable worker and reviewer models, and start with a small change you can check. Review the gateway's fallback settings: paid routes may have separate charges.
Get cheapoS →Two sources. Clearly labeled.
Availability, token pricing, capabilities, and context capacity come from the OpenRouter model catalog. A listing is not a live availability check. Only explicit free routes with zero input, output, and any reported per-request price are included; optional features can have separate charges.
Coding, agentic, and intelligence indices are attributed to Artificial Analysis, as distributed by OpenRouter. The retrieval date tells you when we fetched the catalog, not when a benchmark was run. Missing scores remain unreported and do not exclude a model.
Only accepted, signed request evidence from members who share model details contributes here. We match the recorded provider and exact free model route. An installation signature authenticates its reports; it does not independently prove model quality. Report corrections and sharing preferences flow through the Club's existing public-data service.
Loaded 1 of 1 sampled public profiles from the zero-cost leaderboard (up to 20). This is a limited shared-history sample, not all users or all requests. Retrieved .
Request success excludes cancelled and unknown outcomes. Average request time includes generation and can vary with prompts, providers, and hardware. These figures do not measure completed tasks, code quality, or benchmark performance. Explore the Engine Room →
The catalog lists zero input and output token prices for these explicit free variants. You still need an OpenRouter account and API key, and usage limits apply. Optional tools or features may have separate costs. Always confirm current pricing on the model's provider page; we do not provide inference or guarantee a quota.
Use the tool-calling filter for agent workflows and coding or agentic scores as a starting point. Check the community sample size, then try a small task in your own project. Benchmark scores, request reliability, and successful software delivery answer different questions.
It may be new, unused in the sampled profiles, shared without model details, or recorded under a route we cannot match exactly. It stays listed because published availability is useful on its own. We never fill the gap with a guessed success rate.
Use cheapoS on real projects and opt in to Club sharing, including model details if you choose. Only accepted signed evidence contributes to community request statistics. Join the Club or read what gets shared.