{"rid":"inference/huggingface-gradio-chat-spaces","card":{"rid":"inference/huggingface-gradio-chat-spaces","eid":"huggingface","topic":"inference","slug":"huggingface-gradio-chat-spaces","provider":"Hugging Face public Gradio chat Spaces (anonymous API)","url":"https://huggingface.co/docs/hub/spaces-zerogpu","domain":"huggingface.co","category":"inference through public Gradio Spaces, anonymous callers","tier":null,"verdict":"qualifies-with-caveat","vorder":1,"grp":"usable","confidence":"documented","binding":"volume-quota","identity_kind":"anonymous","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"rest","egress_metered":null,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-10-28T04:36:18.974Z","verified_basis":"live","checked_on":"2026-10-29","stale_on":"2026-11-29","n_evidence":4,"usd_month":null,"usd_per_tb_month":null,"summary":"ZeroGPU Spaces give an unauthenticated caller 2 minutes of GPU quota a day at low queue priority (5 minutes for a free account); a public Gradio chat Space p...","duplicate_of":null,"n_unknown":4,"free_unit":"minutes"},"record":{"topic":"inference","per_object_cap":{"stated":"not applicable"},"retention":{"stated":"not applicable"},"egress":{"terms":null,"metered":false},"interface":["rest"],"slug":"huggingface-gradio-chat-spaces","provider":"Hugging Face public Gradio chat Spaces (anonymous API)","url":"https://huggingface.co/docs/hub/spaces-zerogpu","category":"inference through public Gradio Spaces, anonymous callers","free_tier":{"stated":"ZeroGPU Spaces give an unauthenticated caller 2 minutes of GPU quota a day at low queue priority (5 minutes for a free account); a public Gradio chat Space publishes its API schema with no token","unit":"minutes","metered_on":"wall-clock","source_url":"https://huggingface.co/docs/hub/spaces-zerogpu","read_on":"2026-10-28","notes":"each Space defines its own endpoint names, such as /generate on huggingface-projects/llama-2-13b-chat; there is no OpenAI-shaped route and no model id echo"},"endpoint":"https://huggingface-projects-llama-2-13b-chat.hf.space/gradio_api/info","tooling":"gradio_client or the Space's /gradio_api/call/<api_name> routes; the schema is at /gradio_api/info on current Gradio and /info on older ones","chaining":"pairs with ad hoc scripts; the 2 minutes a day of ZeroGPU quota for an unauthenticated caller is the scarce link","limits":[{"kind":"volume-quota","value":"2 minutes of ZeroGPU GPU quota per day for an unauthenticated caller, low queue priority; 5 minutes for a free account; the quota resets exactly 24 hours after the first GPU usage","source":"https://huggingface.co/docs/hub/spaces-zerogpu"}],"binding":"volume-quota","binding_note":"the 2 minutes a day of GPU quota binds; a Space on CPU hardware has no such quota stated in the page read","identity_cost":{"kind":"anonymous","detail":"an unauthenticated caller is a documented quota tier (Unauthenticated, 2 minutes, Low queue priority); no token was needed to read /gradio_api/info","country":null},"reliability_note":"a Space can be paused or in an error state, and an older Gradio Space serves its schema at /info rather than /gradio_api/info","confidence":"documented","confidence_note":"the quota is first-party; the schema was read by a keyless GET. No chat call was made because probe issues GET and HEAD only, so a completed answer is unverified","probe":{"records":[{"probe_id":"hf-llama2-13b-chat-info-get","method":"GET","url":"https://huggingface-projects-llama-2-13b-chat.hf.space/gradio_api/info","http":200,"authorization_sent":false,"named_endpoints":["/generate"],"probed_at":"2026-10-28T04:50:09.841Z","chat_completion_tested":false},{"probe_id":"hf-llama3-8b-info-get","method":"GET","url":"https://ysharma-chat-with-meta-llama3-8b.hf.space/info","http":200,"named_endpoints":["/chat"],"probed_at":"2026-10-28T04:50:17.493Z"},{"probe_id":"hf-llama3-8b-gradio-api-info-get","method":"GET","url":"https://ysharma-chat-with-meta-llama3-8b.hf.space/gradio_api/info","http":404,"probed_at":"2026-10-28T04:50:14.944Z"}]},"evidence":[{"url":"https://huggingface.co/docs/hub/spaces-zerogpu","date":"2026-10-28","capture":"sha256:949c22d45251350837459dc32cd16a8713d43068105dd2e610515a6e41af513b","quote":"| Unauthenticated                | 2 minutes                | Low             |","proved":"an unauthenticated caller has 2 minutes of daily ZeroGPU quota at low priority"},{"url":"https://huggingface.co/docs/hub/spaces-zerogpu","date":"2026-10-28","capture":"sha256:949c22d45251350837459dc32cd16a8713d43068105dd2e610515a6e41af513b","quote":"| Free account                   | 5 minutes                | Medium          |","proved":"a free account has 5 minutes a day at medium priority"},{"url":"https://huggingface.co/docs/hub/spaces-zerogpu","date":"2026-10-28","capture":"sha256:949c22d45251350837459dc32cd16a8713d43068105dd2e610515a6e41af513b","quote":"Included daily quota resets exactly 24 hours after your first GPU usage.","proved":"the daily quota resets 24 hours after first use"},{"url":"https://huggingface-projects-llama-2-13b-chat.hf.space/gradio_api/info","date":"2026-10-28","capture":"sha256:21f8d7f4105af2a0de4b0ea8185461b7a2574da42b67e629611232371190b448","quote":"{\"named_endpoints\":{\"/generate\":{\"parameters\":[","proved":"a keyless GET /gradio_api/info answered 200 with a named /generate endpoint on a public chat Space"}],"verdict":"qualifies-with-caveat","verified_at":"2026-10-28T04:36:18.974Z"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":2,"unit":"minutes","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:volume-quota","num":2,"unit":"minutes","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.egress.metered","egress-unknown"],["$.egress.terms","process"],["$.per_object_cap.stated","not-applicable"],["$.retention.stated","not-applicable"]],"history":[],"drift":[]}