Public comparative board
ZDR Rankings
Independent ranking of AI endpoints by residual data retention (The ZDR Scale). Lower is better. Accredited to zdr.dev.
Leaderboard
Sorted by score ascending (0.0 first), then evidence grade strength, then name. Dense rank: equal scores share a rank; the next distinct score takes the next integer. Origin flag shows lab country. Self-host means published weights can run on customer infrastructure; Provider-hosted means API-only. PRC-origin sink is a registry custody view, not this ranking.
| Rank | Provider / service | Score | Lane | Hosting | License | Δ | Last verified |
|---|---|---|---|---|---|---|---|
| 1 |
|
ZDR 0.5 · A | ZDR | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 1 |
|
ZDR 0.5 (f) · B | ZDR | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 1 |
|
ZDR 0.5 · B | ZDR | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 1 |
|
ZDR 0.5 (f,x) · B | ZDR | Self-host | open-weight | seeded | 2026-08-25 |
| 1 |
|
ZDR 0.5 · B | ZDR | Provider-hosted | proprietary | seeded | 2026-08-25 |
| 1 |
|
ZDR 0.5 (r) · B | ZDR | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 1 |
|
ZDR 0.5 · C | ZDR | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 1 |
|
ZDR 0.5 (x) · C | ZDR | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 2 |
|
ZDR 1.0 (s,f,r) · A | ZDR | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 2 |
|
ZDR 1.0 (s,f,r) · A | ZDR | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 2 |
|
ZDR 1.0 (s) · A | ZDR | Self-host | open-weight | seeded | 2026-08-25 |
| 2 |
|
ZDR 1.0 (s,r) · B | ZDR | Provider-hosted | proprietary | seeded | 2026-08-25 |
| 2 |
|
ZDR 1.0 (s,f,r) · B | Enterprise | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 2 |
|
ZDR 1.0 (s,f,h,r) · B | Enterprise | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 2 |
|
ZDR 1.0 (f) · B | ZDR | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 3 |
|
ZDR 2.0 (s,h) · A | Enterprise | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 3 |
|
ZDR 2.0 (s) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 3 |
|
ZDR 2.0 (f,h) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 3 |
|
ZDR 2.0 · B | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 3 |
|
ZDR 2.0 (f) · B | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 3 |
|
ZDR 2.0 (f,h) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-24 (registry) |
| 3 |
|
ZDR 2.0 (f) · B | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 3 |
|
ZDR 2.0 · B | API default | Provider-hosted | proprietary | seeded | 2026-08-25 |
| 4 |
|
ZDR 3.0 (f) · B | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 4 |
|
ZDR 3.0 (f) · B | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 4 |
|
ZDR 3.0 (x) · B | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 4 |
|
ZDR 3.0 (x) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-25 |
| 4 |
|
ZDR 3.0 · C | API default | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 5 |
|
ZDR 4.0 (s,x) · A | API default | Self-host | open-weight | seeded | 2026-08-25 |
| 5 |
|
ZDR 4.0 (s,h,r,x) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-25 |
| 5 |
|
ZDR 4.0 · B | API default | Self-host | open-weight | seeded | 2026-08-24 (registry) |
| 5 |
|
ZDR 4.0 (s) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-25 |
| 5 |
|
ZDR 4.0 (f) · B | API default | Provider-hosted | proprietary | seeded | 2026-08-25 |
-
#1
United StatesAWSBedrock, data_retention_mode:none, non-covered models
-
#1
United StatesFireworks AIopen models
-
#1
United StatesGroqZDR toggled
-
#1
United StatesOpenRouterhop, zdr enforced
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#1
United StatesPerplexityChat Completions / Sonar API
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#1
United StatesxAIZDR toggled
-
#1
United StatesCerebrasinference API
-
#1
United StatesTogether AIserverless default
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#2
United StatesAnthropicZDR org, non-covered models
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#2
United StatesOpenAIfirst-party API, ZDR approved
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#2
ChinaZ.AIinternational Model API (api.z.ai), not mainland BigModel
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#2
CanadaCohereSaaS API, ZDR approved
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#2
United StatesGoogleVertex / Gemini Enterprise Agent Platform
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#2
United StatesMicrosoftAzure OpenAI / Foundry, modified abuse monitoring
-
#2
FranceMistralZDR approved
-
#3
United StatesAnthropicFable 5 / Mythos 5, all platforms
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#3
United StatesAnthropicfirst-party API, default
-
#3
United StatesGoogleGemini Developer API, paid tier
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#3
United StatesGroqfirst-party API, default
-
#3
FranceMistralfirst-party API, default
-
#3
United StatesOpenAIfirst-party API, default
-
#3
United StatesReplicatePredictions API, not the web UI
-
#3
United StatesxAIfirst-party API, default
-
#4
ChinaAlibabaQwen / Model Studio API
-
#4
United StatesCloudflareWorkers AI API
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#4
United StatesHugging FaceInference Providers hop
-
#4
United StatesOpenRouterhop, default routing
-
#4
United StatesMetaMeta Model API
-
#5
United StatesNVIDIAAPI Catalog / hosted NIM trial
-
#5
CanadaCohereSaaS Platform API, default
-
#5
ChinaDeepSeekfirst-party API
-
#5
ChinaMiniMaxOpen Platform first-party API
-
#5
ChinaMoonshotKimi API, first-party
Methodology
We score published promises. The unit is the endpoint (model × platform × feature), not the company. Lower is better on the countdown scale; 0.0 (Sovereign) is none issued in the seed. This board is not an LM Arena capability Elo and does not invent votes. It is a public comparative board of residual data retention claims, analogous in presentation only.
Changes over time
Seed board locked 2026-08-24. Scored moves will appear here.
Need this applied to your stack?
Map coverage, exceptions, and negotiation asks for the endpoints you actually use.