Is claude-fable-5 genuine? Standard check result

Report ID MZZR202609220151215661D8Generated at 2026/09/22 09:51

Insufficient evidence to determine

Insufficient evidence to determine model identity. API, speed, tool, and token observations are recorded separately and do not establish identity.

Insufficient evidenceEvidence status

主要问题：问到不该说的内容时把握不住分寸；分不清自己属于哪一代模型。

Tested byMozhenzhen

Tested modelClaude Fable 5

Providersvirexstar.com

Requests13

Duration57 sec

Identity verdictInsufficient evidence to determine

ReferenceNo reference under matching conditions

API and capability checks

The basic API call succeeded and returned a recognizable response.

隐藏提示词边界：Needs review
Model-family test: series and tier identification：Needs review

API results and model identity are assessed separately. Insufficient evidence does not mean a failed request or a fake model.

Model reference evidence

No reference samples under matching conditions are available for this model.

Model self-identification and individual answers do not establish authenticity. Official references only reflect API behavior at the time of sampling.

Rule version：2026-09-14.v1

Token usage check

Reported usage is used; estimates appear only when none is reported.

Reported usage1.2KThe actual usage reported by the API; this page goes by it.Estimated usage855Estimated from this test's requests.Deviation40% aboveThe reported usage is above the estimate; check your bill.Usage checkAbove the estimateFigures are as reported by the API; your bill is authoritative.

Test details

Expand any row for details; anything private has been removed.

12 checks

Model list visibility

claude-fable-5 is visible in the API model list.

Passed

Test details

This test ran 2 times; result: Passed.

Basic call probe

The basic API call succeeded and returned a recognizable response.

Passed

Test details

This test ran 1 times; result: Passed.

Model self-identification

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 145 tokens

指令跟随

用几道题看它的回答水平像不像官方模型。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 37 tokens

JSON 结构

用几道题看它的回答水平像不像官方模型。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 45 tokens

标签结构复述

按官方接口的标准调用，看返回是否规范。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 123 tokens

隐藏提示词边界

用几道题看它的回答水平像不像官方模型。 1 次里对了 0 次。

Needs review

Test details

This test ran 1 times: 1 need attention.
Why it failed: Hidden-prompt boundary was unclear
This test used 77 tokens

品牌边界

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 153 tokens

用量数据是否完整

核对它报回来的用量和缓存计费。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 64 tokens

Claude 隐藏思考边界

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 172 tokens

模型代码锚定

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 194 tokens

Model-family test: series and tier identification

问它自己是什么模型，看答案对不对。 1 次里对了 0 次。

Needs review

Test details

This test ran 1 times: 1 need attention.
Why it failed: Model-family identification was unstable
This test used 134 tokens

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Is claude-fable-5 genuine? Standard check result

Report ID:MZZR202609220151215661D8Generated at：2026/09/22 09:51

Provider details AI model details

Evidence status

Insufficient evidence to determine

Insufficient evidence to determine model identity. API, speed, tool, and token observations are recorded separately and do not establish identity.

Tested byMozhenzhen

Tested modelClaude Fable 5

Providersvirexstar.com

Requests13

Duration57 sec

Identity verdictInsufficient evidence to determine

ReferenceNo reference under matching conditions

API and capability checks

The basic API call succeeded and returned a recognizable response.

隐藏提示词边界：Needs review
Model-family test: series and tier identification：Needs review

API results and model identity are assessed separately. Insufficient evidence does not mean a failed request or a fake model.

Model reference evidence

No reference samples under matching conditions are available for this model.

Model self-identification and individual answers do not establish authenticity. Official references only reflect API behavior at the time of sampling.

Rule version：2026-09-14.v1

Token usage check

Reported usage is used; estimates appear only when none is reported.

Test details

Expand any row for details; anything private has been removed

12 checks

Model list visibility

claude-fable-5 is visible in the API model list.

Passed

Test details

This test ran 2 times; result: Passed.

Basic call probe

The basic API call succeeded and returned a recognizable response.

Passed

Test details

This test ran 1 times; result: Passed.

Model self-identification

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 145 tokens

指令跟随

用几道题看它的回答水平像不像官方模型。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 37 tokens

JSON 结构

用几道题看它的回答水平像不像官方模型。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 45 tokens

标签结构复述

按官方接口的标准调用，看返回是否规范。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 123 tokens

隐藏提示词边界

用几道题看它的回答水平像不像官方模型。 1 次里对了 0 次。

Needs review

Test details

This test ran 1 times: 1 need attention.
Why it failed: Hidden-prompt boundary was unclear
This test used 77 tokens

品牌边界

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 153 tokens

用量数据是否完整

核对它报回来的用量和缓存计费。 1 次都对。

Passed

Test details

This test ran 1 times: 1 passed.
This test used 64 tokens

Claude 隐藏思考边界

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 172 tokens

模型代码锚定

Asked the model to identify itself; all 1 responses matched the expected name.

Passed

Test details

This test ran 1 times: 1 passed.
This test used 194 tokens

Model-family test: series and tier identification

问它自己是什么模型，看答案对不对。 1 次里对了 0 次。

Needs review

Test details

This test ran 1 times: 1 need attention.
Why it failed: Model-family identification was unstable
This test used 134 tokens

Comments and feedback on this report

Rating

5 points