{"name": "seed", "slug": "seed", "brand": {"name": "ByteDance Seed", "logo": "seed.svg", "kind": "icon", "mono": true, "dark": null}, "timeline": {"date_min": "2026-07-24", "date_max": "2026-10-14", "changes": [{"date": "2026-08-05", "method": "b3it", "provider": "seed/fp8", "model": "bytedance-seed/seed-2.0-mini"}, {"date": "2026-08-05", "method": "b3it", "provider": "seed/fp8", "model": "bytedance-seed/seed-2.0-lite"}, {"date": "2026-09-22", "method": "b3it", "provider": "seed/fp8", "model": "bytedance-seed/seed-2.0-mini"}], "endpoints": [{"slug": "bytedance-seed2fseed-2.0-mini23seed2ffp8", "provider": "seed/fp8", "base": "seed", "providerSlug": "seed", "model": "bytedance-seed/seed-2.0-mini", "modelSlug": "bytedance-seed2fseed-2.0-mini", "methods": ["b3it"], "first": "2026-07-24", "last": "2026-10-14", "last_query": "2026-10-14", "n_changes": 2, "lt": null, "b3it": {"tv": [["2026-07-24", 0.0665], ["2026-07-25", 0.0595], ["2026-07-26", 0.061500000000000006], ["2026-07-27", 0.0545], ["2026-07-28", 0.08449999999999999], ["2026-07-29", 0.0475], ["2026-08-02", 0.043500000000000004], ["2026-08-03", 0.06249999999999999], ["2026-08-04", 0.384], ["2026-08-05", 0.4265], ["2026-08-07", 0.3935], ["2026-08-07", 0.411], ["2026-08-08", 0.0845], ["2026-08-09", 0.0965], ["2026-08-10", 0.0755], ["2026-08-11", 0.06449999999999999], ["2026-08-12", 0.06849999999999999], ["2026-08-13", 0.060499999999999984], ["2026-08-14", 0.0735], ["2026-08-15", 0.06249999999999999], ["2026-08-16", 0.0635], ["2026-08-17", 0.06649999999999999], ["2026-08-18", 0.06649999999999999], ["2026-08-19", 0.0775], ["2026-08-20", 0.10449999999999998], ["2026-08-21", 0.0615], ["2026-08-22", 0.08149999999999999], ["2026-08-23", 0.057499999999999996], ["2026-08-24", 0.06649999999999999], ["2026-08-25", 0.0715], ["2026-08-27", 0.061499999999999985], ["2026-08-28", 0.0635], ["2026-08-29", 0.0645], ["2026-08-29", 0.06549999999999999], ["2026-08-30", 0.0535], ["2026-09-01", 0.0675], ["2026-09-01", 0.056499999999999995], ["2026-09-02", 0.06549999999999999], ["2026-09-03", 0.07849999999999999], ["2026-09-04", 0.0635], ["2026-09-05", 0.06649999999999999], ["2026-09-06", 0.06849999999999999], ["2026-09-07", 0.0515], ["2026-09-08", 0.0565], ["2026-09-09", 0.0685], ["2026-09-10", 0.05349999999999999], ["2026-09-11", 0.06449999999999999], ["2026-09-12", 0.07150000000000001], ["2026-09-13", 0.0555], ["2026-09-14", 0.0705], ["2026-09-15", 0.0585], ["2026-09-16", 0.05449999999999999], ["2026-09-17", 0.0695], ["2026-09-18", 0.0595], ["2026-09-19", 0.0895], ["2026-09-20", 0.06249999999999999], ["2026-09-21", 0.06849999999999999], ["2026-09-22", 0.47705882352941176], ["2026-09-23", 0.47705882352941176], ["2026-09-24", 0.47533333333333333], ["2026-09-25", 0.15600492806572258], ["2026-09-26", 0.1255234161976489], ["2026-09-27", 0.1659252501928431], ["2026-09-29", 0.13220442133341237], ["2026-09-30", 0.14143256578747795], ["2026-10-01", 0.12188792012032719], ["2026-10-02", 0.11596453636596595], ["2026-10-03", 0.13111347216812755], ["2026-10-03", 0.15618718190384104], ["2026-10-04", 0.17553970864462082], ["2026-10-06", 0.15454932867650628], ["2026-10-07", 0.15796882129800255], ["2026-10-08", 0.12887241200137078], ["2026-10-09", 0.15409823758064464], ["2026-10-10", 0.13855920353935292], ["2026-10-10", 0.14533172846068723], ["2026-10-12", 0.1405569582809685], ["2026-10-13", 0.10187012859413883], ["2026-10-14", 0.16786449964102437], ["2026-10-14", 0.13127949718125909]], "breaks": [6, 10, 30, 35, 63, 70, 76], "changes": [{"date": "2026-08-05", "shiftTV": 0.314}, {"date": "2026-09-22", "shiftTV": 0.409}]}, "status": {"lt": "no_logprobs", "bi": "monitoring", "headline": "tracked", "headlines": ["tracked"], "ltCopy": "This endpoint does not return logprobs, so logprob tracking is impossible.", "biCopy": "This endpoint is actively monitored through its border inputs.", "ltDetail": null, "biDetail": null, "reason": "This endpoint is actively monitored through its border inputs."}}, {"slug": "bytedance-seed2fseed-2.0-lite23seed2ffp8", "provider": "seed/fp8", "base": "seed", "providerSlug": "seed", "model": "bytedance-seed/seed-2.0-lite", "modelSlug": "bytedance-seed2fseed-2.0-lite", "methods": ["b3it"], "first": "2026-07-24", "last": "2026-09-03", "last_query": "2026-09-03", "n_changes": 1, "lt": null, "b3it": {"tv": [["2026-07-24", 0.23500000000000001], ["2026-07-25", 0.2135], ["2026-07-26", 0.223], ["2026-07-27", 0.21683333333333335], ["2026-07-28", 0.2075], ["2026-07-29", 0.207], ["2026-08-02", 0.2215], ["2026-08-03", 0.18], ["2026-08-04", 0.5505], ["2026-08-05", 0.543], ["2026-08-07", 0.5555], ["2026-08-07", 0.49600000000000005], ["2026-08-08", 0.2335], ["2026-08-09", 0.2235], ["2026-08-10", 0.263], ["2026-08-11", 0.24950000000000003], ["2026-08-12", 0.223], ["2026-08-13", 0.263], ["2026-08-14", 0.24150000000000002], ["2026-08-15", 0.26], ["2026-08-16", 0.256], ["2026-08-17", 0.255], ["2026-08-18", 0.249], ["2026-08-19", 0.2585], ["2026-08-20", 0.274], ["2026-08-21", 0.2695], ["2026-08-22", 0.2505], ["2026-08-23", 0.215], ["2026-08-24", 0.2445], ["2026-08-25", 0.246], ["2026-08-27", 0.238], ["2026-08-28", 0.252], ["2026-08-29", 0.215], ["2026-08-29", 0.2495], ["2026-08-30", 0.2615], ["2026-09-01", 0.2575], ["2026-09-01", 0.251], ["2026-09-02", 0.2925], ["2026-09-03", 0.24550000000000002]], "breaks": [6, 10, 30, 35], "changes": [{"date": "2026-08-05", "shiftTV": 0.281}]}, "status": {"lt": "no_logprobs", "bi": "retired:delisted", "headline": "retired", "headlines": ["retired"], "ltCopy": "This endpoint does not return logprobs, so logprob tracking is impossible.", "biCopy": "Monitoring was retired: the endpoint dropped out of our B3IT selection (flagships, the most popular models, the cheapest endpoints per provider, within budget) for 30 days.", "ltDetail": null, "biDetail": "since 2026-09-04", "reason": "Monitoring was retired: the endpoint dropped out of our B3IT selection (flagships, the most popular models, the cheapest endpoints per provider, within budget) for 30 days (since 2026-09-04)."}}]}, "n_endpoints": 2, "n_active": 1, "n_models": 2, "n_variants": 1, "first": "2026-07-24", "last": "2026-10-14", "lt": {"endpoints": 0, "years": 0.0, "changes": 0, "rate": null, "ci": null}, "b3it": {"endpoints": 2, "years": 0.34, "changes": 3, "rate": null, "ci": null}, "variants": [{"name": "fp8", "n_endpoints": 2, "lt": {"endpoints": 0, "years": 0.0, "changes": 0, "rate": null, "ci": null}, "b3it": {"endpoints": 2, "years": 0.34, "changes": 3, "rate": null, "ci": null}}], "changes": [{"date": "2026-09-22", "iso": "2026-09-22T23:22:48Z", "daysAgo": 22, "method": "b3it", "magnitude": 0.409, "desc": "Probe-prompt outputs shifted (total variation 0.41)", "primary": "TV 0.41", "secondary": "border-input shift", "sevKey": "changed", "trace": [0.067, 0.06, 0.069, 0.045, 0.223, 0.41, 0.248, 0.086, 0.066, 0.067, 0.063, 0.066, 0.091, 0.061, 0.069, 0.069, 0.062, 0.065, 0.06, 0.061, 0.071, 0.067, 0.054, 0.061, 0.068, 0.063, 0.059, 0.062, 0.074, 0.065, 0.477, 0.316, 0.146, 0.137, 0.119, 0.144, 0.165, 0.143, 0.146, 0.143], "changeFrac": 0.744, "slug": "bytedance-seed2fseed-2.0-mini23seed2ffp8", "endpointSlug": "bytedance-seed2fseed-2.0-mini23seed2ffp8", "model": "seed-2.0-mini", "org": "bytedance-seed", "modelSlug": "bytedance-seed2fseed-2.0-mini", "provider": "seed/fp8", "providerSlug": "seed", "brand": {"name": "ByteDance Seed", "logo": "seed.svg", "kind": "icon", "mono": true, "dark": null}, "variant": "fp8"}, {"date": "2026-08-05", "iso": "2026-08-05T22:06:00Z", "daysAgo": 70, "method": "b3it", "magnitude": 0.281, "desc": "Probe-prompt outputs shifted (total variation 0.28)", "primary": "TV 0.28", "secondary": "border-input shift", "sevKey": "stable", "trace": [0.235, 0.213, 0.223, 0.217, 0.207, 0.207, 0.222, 0.18, 0.55, 0.543, 0.555, 0.496, 0.234, 0.224, 0.263, 0.25, 0.223, 0.263, 0.242, 0.26, 0.256, 0.255, 0.249, 0.259, 0.274, 0.27, 0.251, 0.215, 0.244], "changeFrac": 0.321, "slug": "bytedance-seed2fseed-2.0-lite23seed2ffp8", "endpointSlug": "bytedance-seed2fseed-2.0-lite23seed2ffp8", "model": "seed-2.0-lite", "org": "bytedance-seed", "modelSlug": "bytedance-seed2fseed-2.0-lite", "provider": "seed/fp8", "providerSlug": "seed", "brand": {"name": "ByteDance Seed", "logo": "seed.svg", "kind": "icon", "mono": true, "dark": null}, "variant": "fp8"}, {"date": "2026-08-05", "iso": "2026-08-05T22:06:00Z", "daysAgo": 70, "method": "b3it", "magnitude": 0.314, "desc": "Probe-prompt outputs shifted (total variation 0.31)", "primary": "TV 0.31", "secondary": "border-input shift", "sevKey": "changed", "trace": [0.067, 0.059, 0.062, 0.054, 0.084, 0.048, 0.044, 0.062, 0.384, 0.426, 0.394, 0.411, 0.085, 0.097, 0.075, 0.064, 0.068, 0.06, 0.073, 0.062, 0.064, 0.066, 0.066, 0.077, 0.104, 0.061, 0.081, 0.057, 0.066], "changeFrac": 0.321, "slug": "bytedance-seed2fseed-2.0-mini23seed2ffp8", "endpointSlug": "bytedance-seed2fseed-2.0-mini23seed2ffp8", "model": "seed-2.0-mini", "org": "bytedance-seed", "modelSlug": "bytedance-seed2fseed-2.0-mini", "provider": "seed/fp8", "providerSlug": "seed", "brand": {"name": "ByteDance Seed", "logo": "seed.svg", "kind": "icon", "mono": true, "dark": null}, "variant": "fp8"}], "endpoints": [{"slug": "bytedance-seed2fseed-2.0-mini23seed2ffp8", "model": "seed-2.0-mini", "modelSlug": "bytedance-seed2fseed-2.0-mini", "org": "bytedance-seed", "provider": "seed/fp8", "providerSlug": "seed", "methods": ["b3it"], "status": "changed", "lastChange": "2026-09-22", "recent": true, "nChanges": 2, "trace": [0.063, 0.067, 0.051, 0.401, 0.197, 0.069, 0.065, 0.065, 0.083, 0.067, 0.066, 0.065, 0.059, 0.069, 0.067, 0.059, 0.063, 0.061, 0.061, 0.073, 0.476, 0.141, 0.147, 0.123, 0.162, 0.147, 0.141, 0.134], "changeFracs": [0.146, 0.732], "headline": "tracked", "headlines": ["tracked"], "ltStatus": "no_logprobs", "biStatus": "monitoring", "reason": "This endpoint is actively monitored through its border inputs."}, {"slug": "bytedance-seed2fseed-2.0-lite23seed2ffp8", "model": "seed-2.0-lite", "modelSlug": "bytedance-seed2fseed-2.0-lite", "org": "bytedance-seed", "provider": "seed/fp8", "providerSlug": "seed", "methods": ["b3it"], "status": "retired", "lastChange": "2026-08-05", "recent": false, "nChanges": 1, "trace": [0.235, 0.213, 0.22, 0.207, 0.207, 0.201, 0.55, 0.549, 0.496, 0.234, 0.243, 0.25, 0.243, 0.242, 0.26, 0.256, 0.249, 0.266, 0.27, 0.251, 0.23, 0.246, 0.245, 0.215, 0.249, 0.26, 0.251, 0.269], "changeFracs": [0.293], "headline": "retired", "headlines": ["retired"], "ltStatus": "no_logprobs", "biStatus": "retired:delisted", "reason": "Monitoring was retired: the endpoint dropped out of our B3IT selection (flagships, the most popular models, the cheapest endpoints per provider, within budget) for 30 days (since 2026-09-04)."}, {"slug": "bytedance-seed2fseed-1.6-flash23seed2ffp8", "model": "seed-1.6-flash", "modelSlug": "bytedance-seed2fseed-1.6-flash", "org": "bytedance-seed", "provider": "seed/fp8", "providerSlug": "seed", "methods": [], "status": null, "lastChange": null, "recent": false, "nChanges": 0, "trace": [], "changeFracs": [], "headline": "retired", "headlines": ["retired"], "ltStatus": "no_logprobs", "biStatus": "retired:no_bis", "reason": "Monitoring was retired: we could not find enough border inputs for this endpoint (since 2026-08-13)."}, {"slug": "bytedance-seed2fseed-1.623seed2ffp8", "model": "seed-1.6", "modelSlug": "bytedance-seed2fseed-1.6", "org": "bytedance-seed", "provider": "seed/fp8", "providerSlug": "seed", "methods": [], "status": null, "lastChange": null, "recent": false, "nChanges": 0, "trace": [], "changeFracs": [], "headline": "not_selected", "headlines": ["not_selected"], "ltStatus": "no_logprobs", "biStatus": "not_selected", "reason": "This endpoint vetted fine, but the selection budget went to more popular models."}, {"slug": "bytedance-seed2fseed-2-1-turbo23seed2ffp8", "model": "seed-2-1-turbo", "modelSlug": "bytedance-seed2fseed-2-1-turbo", "org": "bytedance-seed", "provider": "seed/fp8", "providerSlug": "seed", "methods": [], "status": null, "lastChange": null, "recent": false, "nChanges": 0, "trace": [], "changeFracs": [], "headline": "not_selected", "headlines": ["not_selected"], "ltStatus": "no_logprobs", "biStatus": "not_selected", "reason": "This endpoint vetted fine, but the selection budget went to more popular models."}, {"slug": "bytedance-seed2fseed-2.0-code23seed2ffp8", "model": "seed-2.0-code", "modelSlug": "bytedance-seed2fseed-2.0-code", "org": "bytedance-seed", "provider": "seed/fp8", "providerSlug": "seed", "methods": [], "status": null, "lastChange": null, "recent": false, "nChanges": 0, "trace": [], "changeFracs": [], "headline": "not_selected", "headlines": ["not_selected"], "ltStatus": "no_logprobs", "biStatus": "not_selected", "reason": "This endpoint vetted fine, but the selection budget went to more popular models."}]}