awesome-free-ai-coding · every free model · every provider · filter the list
5 rows on the list serve gemma-4-31b free: OpenRouter (free models), Requesty, NVIDIA NIM (build.nvidia.com), Regolo AI and Opper. None asks for a card. The providers’ last scheduled probes were on 2026-10-26; their offers are rechecked twice a week. It measures notable: in the upper half of the Artificial Analysis Intelligence Index, below its strong bar.
Every free model · the whole list
🧭 Aggregators (one key, many providers) · no card · last probe 2026-10-26 · listed since 2026-09-25
One API key for a rotating set of :free model variants, open-weight and stealth models among them
1,000 requests/day per account (after 10 credits purchased all-time)
OpenRouter’s FAQ says its free models “have low rate limits” and “are usually not suitable for production use”, and its limits page warns that a negative credit balance can produce errors “including for free models” and that a 429 can come from the upstream provider rather than the platform (read 2026-09-27). The docs define the daily counter as “Free-model requests recorded so far in the current UTC day”. The higher daily ceiling is granted “starting one credit below the table’s threshold” to absorb rounding and top-up fees.
https://openrouter.ai/api/v1OPENROUTER_API_KEY — get one at https://openrouter.ai/settings/keysANTHROPIC_BASE_URL): https://openrouter.ai/apiconfigs/codex/openrouter-free.config.toml — copy it to ~/.codex/, then codex -p openrouter-free -m google/gemma-4-31b-it:free; set up on the lane by the vendor’s own page, https://openrouter.ai/docs/cookbook/coding-agents/codex-cli: “Configure Codex for OpenRouter”google/gemma-4-31b-it:free🧭 Aggregators (one key, many providers) · no card · last probe 2026-10-26 · listed since 2026-09-25
OpenAI-compatible router with free models beside a metered catalog, routing, caching and fallbacks
No credit card for the Free plan, which serves free models only. Routing, caching, fallbacks, spend tracking and EU data residency are included. Past the free allowance the same key moves to pay-as-you-go.
https://router.requesty.ai/v1REQUESTY_API_KEY — get one at https://app.requesty.ai/api-keysANTHROPIC_BASE_URL): https://router.requesty.aigoogle/gemma-4-31b-it🔌 LLM APIs with free tier · no card · not offered in Russia, Pakistan, Bangladesh and 11 more places · last probe 2026-10-26 · listed since 2026-09-24
Free endpoints for the models build.nvidia.com marks “Free Endpoint”, open-weight models from several labs among them, called with a free NVIDIA Developer Program key at integrate.api.nvidia.com/v1 (OpenAI-compatible)
No card, but an API key requires an NVIDIA Developer Program account and phone verification in a supported country. Published ceilings can vary by model and traffic can cause throttling. Vendor forum reports describe new personal keys that can list models but receive 404 on chat calls; an issued key alone does not establish working inference. Model pages identify available and deprecated endpoints; copy current IDs from the catalog.
https://integrate.api.nvidia.com/v1NVIDIA_NIM_API_KEY — get one at https://build.nvidia.comgoogle/gemma-4-31b-it🎁 Trials (no card when possible) · no card · last probe 2026-10-26 · listed since 2026-09-27
EU (Italian) zero-retention inference; a month of full model access on a daily token allowance, no card
“Start your 30-day free trial … No credit card required, no commitment”: the trial card names “1 month duration” (“Full access for 30 days, then choose a plan”), and “Stricter rate limits” with “Fair usage throttling applies”, against “All Core Models”, which on the same page is every chat model in the library table (each marked Included under Core). Nothing survives the 30 days — the page names no grant after it, only paid plans — and the daily figure is the only number the trial publishes. One model is priced at €0.00 in and out outside any trial, brick-v1-beta, and it is not one to code with: its own page calls it “a lightweight prompt-complexity classifier designed for LLM routing pipelines”, a Qwen3.5-0.8B LoRA that labels a prompt easy, medium or hard for Regolo’s Brick router (read 2026-09-21)
https://api.regolo.ai/v1REGOLO_API_KEY — get one at https://dashboard.regolo.aigemma4-31b🧭 Aggregators (one key, many providers) · no card · last probe 2026-10-26 · listed since 2026-09-17
EU-hosted model gateway advertising a free route before adding a card; current documentation conflicts on its availability
The signup guide advertises a free US-hosted Gemma route before adding a card, but the current directory has no free routes and its Gemma page lists paid alternatives. The API catalog retains the ID without a price or availability claim. Free access remains unconfirmed. Paid credit purchases add a 3% fee. Opper Technology AB operates in Sweden on AWS Stockholm.
https://api.opper.ai/v3/compatOPPER_API_KEY — get one at https://platform.opper.ai/settings/api-keysANTHROPIC_BASE_URL): https://api.opper.ai/v3/compatconfigs/codex/opper.config.toml — copy it to ~/.codex/, then codex -p opper; set up on the lane by the vendor’s own page, https://docs.opper.ai/integrations/coding-agents/codex: “Run OpenAI’s Codex CLI on any model in the Opper catalog”gemini/gemma-4-31bgemma-4-26b-a4b — free at OpenRouter (free models)Generated from registry.yaml on 2026-10-27 and re-verified twice a week; every free model on the list is at https://mvalentsev.github.io/awesome-free-ai-coding/models/, and the full list, the Atom feed and the machinery at https://github.com/mvalentsev/awesome-free-ai-coding.