Cline (free model rotation pool)

Once signed in to a Cline account, the IDE extension and CLI give direct access to whichever models are currently tagged FREE in the rotating pool, no credit card required; quotas are set per model, and once exhausted you need to switch models or bring your own API key

Official documentation (docs.cline.bot/getting-started/authorizing-with-cline, verified 2026-08-30) states verbatim: 'Cline (usage-billing) (recommended): sign in with Google/GitHub/email, no API key setup' — i.e. any one of three sign-in options, no API key needed upfront. The free-model pool rotates through partnerships between the vendor and model makers rather than being locked to a fixed model — for instance, NVIDIA's open-source Nemotron 3.5 Lightning, released 2026-08-11, is the kind of new model that often gets tagged free for a short window right after launch on mainstream platforms; it's a reference example of the rotation mechanism, not a claim that this specific model is locked in long-term. Official documentation is explicit that 'Free model usage is not supported through the Cline API. Free models are only available in the Cline IDE Extension and CLI.' The exact free quota isn't publicly disclosed; community reports describe free models hitting a usage cap, after which the displayed credit goes negative and you need to switch models (cline/cline GitHub Issue #9416).

⚠️A mechanism-level entry, not tied to any specific model — the free pool rotates as vendor/model-maker partnerships come and go; the mechanism itself is likely to persist long-term even though no specific model is guaranteed to. Check the in-app model picker for whichever models are currently tagged FREE. Free models are limited to the IDE extension and CLI and cannot be called through Cline's own API; for stable, controllable model access, switch to bring-your-own-API-key (BYOK) mode, billed separately by the relevant vendor — Cline itself adds no markup.