Identity confirmedModel verified
Confirmed as the official claude-fable-5-2
Behavior matches the official claude-fable-5-2.
Brand consistency100/100
Model match score (claude-fable-5-2)99/100
Checks15/17 Passed
- Relay · group
- ideastead.com · claudemax
- Claimed model
- claude-fable-5-2
- Plan
- Full check
- Reference
- 110 official models
- Requests
- 18
- Duration
- 2 分钟
01Identity check
Behaviour compared with each official referenceIndependent sample A采样 AValidIndependent sample B采样 BValidIndependent sample C采样 CValidIndependent sample D采样 DValidIndependent sample E采样 EValidIndependent sample F采样 FValidReference110 official models · 6/6 Valid
Answer by answer6 answers: 4 match claude-fable-5-2；another 1 look more like claude-opus-5-5；another 1 match no model clearly on their own
Similarity to official modelsTop 5
- claude-fable-5-2Claimed model99%
- claude-opus-5-5<1%
- claude-fable-5-1<1%
- kimi-k3.1-pro<1%
- claude-sonnet-5-5<1%
02Test details
17 items · 15 passed · 2 notes · 0 failed| No. | Check | Result | Methodology |
|---|---|---|---|
| Connectivity & auth | |||
| A-01 | Endpoint reachable | Passed | The endpoint responds normally |
| A-02 | Key authentication | Passed | API key is valid and allowed to make calls |
| A-03 | Model on sale | Passed | The model list includes claude-fable-5-2 |
| API conformance | |||
| B-01 | Basic call | Passed | Returns the expected content as instructed |
| B-02 | Response structure | Meets the spec | All OpenAI-compatible fields are present |
| B-03 | Model ID echoed back | Match | The model ID in the response matches the request |
| B-04 | Usage record | Complete and consistent | Input, output and total are all present, and the total equals the sum |
| B-05 | Output cleanliness | Nothing added | No inserted ads, watermarks or extra notes found |
| Identity check | |||
| C-01 | Independent sampling | 6 / 6 valid | 首轮未能判定，已追加一轮；独立采样均可用于比对 |
| C-02 | Brand consistency | Match | Behavior belongs to the Anthropic Claude family; brand match score 100 |
| C-03 | Model consistency | Match | 与官方 claude-fable-5-2 吻合，型号一致度 99 |
| C-04 | Cross-brand swap check | None found | Similarity to other brands' models totals under 1% |
| Billing & capabilities | |||
| D-01 | Cache billing | Partly works | On average 50% of repeated requests were billed at the cache price; the rest at the regular price. |
| D-02 | Context length | 128K passed | 32K / 128K: every tier was read in full. |
| D-03 | Streaming output | Normal | Streamed content is complete |
| D-04 | Tool use | Supported | Returns the correct function name and arguments |
| D-05 | Structured output | Did not follow the schema | The response did not follow the required JSON schema |
Cache billing check
The same long content was sent 5 times: the 1st is billed at the regular price, and from the 2nd on the repeated part should be billed at the cache price.
Cache billing ratio49.9%
Partly works
On average 50% of repeated requests were billed at the cache price; the rest at the regular price.
Usage this run98.4KCached tokens39.3KNon-cached tokens59.1KAverage per run19.7K
Usage reportedReportedCache billingHappenedResultPartly works
Cache share by testThis is only the cache share the endpoint reported; the real discount is on the bill
Context length check
Long documents are sent tier by tier to check whether the whole document is read.
Verified up to 128K
32K / 128K: every tier was read in full.
Reference windowVerified up to 128KThe model center has no reference context window for this model yet.Tested context lengths32K / 128KTested from short to long, stopping at the first failure.
- 32KRead in full · 89.4K received
- 128KRead in full · 120.1K received
Token usage check
Reported usage is used; estimates appear only when none is reported.
Reported usage322.5KThe actual usage reported by the API; this page goes by it.Estimated usage157.4K-302.3KEstimated from this test's requests.Deviation7% aboveThe reported usage is above the estimate; check your bill.Usage checkAbove the estimateFigures are as reported by the API; your bill is authoritative.
Method: independent samples from the tested endpoint are compared against reference samples collected from official channels; billing, context and capability items come from real calls. API keys, request bodies and raw model output are not stored.
This report reflects the endpoint at the time of testing.
Reviews
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Mozhenzhen verification report · Measured with real calls
claude-fable-5-2 verification report
Identity confirmedModel verified
Confirmed as the official claude-fable-5-2
Behavior matches the official claude-fable-5-2.
Brand consistency100/100
Model match score (claude-fable-5-2)99/100
Checks15/17 Passed
- Relay · group
- ideastead.com · claudemax
- Claimed model
- claude-fable-5-2
- Plan
- Full check
- Reference
- 110 official models
- Requests
- 18
- Duration
- 2 分钟
01Identity check
Behaviour compared with each official referenceIndependent sample A采样 AValidIndependent sample B采样 BValidIndependent sample C采样 CValidIndependent sample D采样 DValidIndependent sample E采样 EValidIndependent sample F采样 FValidReference110 official models · 6/6 Valid
Answer by answer6 answers: 4 match claude-fable-5-2；another 1 look more like claude-opus-5-5；another 1 match no model clearly on their own
Similarity to official modelsTop 5
- claude-fable-5-2Claimed model99%
- claude-opus-5-5<1%
- claude-fable-5-1<1%
- kimi-k3.1-pro<1%
- claude-sonnet-5-5<1%
02Test details
17 items · 15 passed · 2 notes · 0 failed| No. | Check | Result | Methodology |
|---|---|---|---|
| Connectivity & auth | |||
| A-01 | Endpoint reachable | Passed | The endpoint responds normally |
| A-02 | Key authentication | Passed | API key is valid and allowed to make calls |
| A-03 | Model on sale | Passed | The model list includes claude-fable-5-2 |
| API conformance | |||
| B-01 | Basic call | Passed | Returns the expected content as instructed |
| B-02 | Response structure | Meets the spec | All OpenAI-compatible fields are present |
| B-03 | Model ID echoed back | Match | The model ID in the response matches the request |
| B-04 | Usage record | Complete and consistent | Input, output and total are all present, and the total equals the sum |
| B-05 | Output cleanliness | Nothing added | No inserted ads, watermarks or extra notes found |
| Identity check | |||
| C-01 | Independent sampling | 6 / 6 valid | 首轮未能判定，已追加一轮；独立采样均可用于比对 |
| C-02 | Brand consistency | Match | Behavior belongs to the Anthropic Claude family; brand match score 100 |
| C-03 | Model consistency | Match | 与官方 claude-fable-5-2 吻合，型号一致度 99 |
| C-04 | Cross-brand swap check | None found | Similarity to other brands' models totals under 1% |
| Billing & capabilities | |||
| D-01 | Cache billing | Partly works | On average 50% of repeated requests were billed at the cache price; the rest at the regular price. |
| D-02 | Context length | 128K passed | 32K / 128K: every tier was read in full. |
| D-03 | Streaming output | Normal | Streamed content is complete |
| D-04 | Tool use | Supported | Returns the correct function name and arguments |
| D-05 | Structured output | Did not follow the schema | The response did not follow the required JSON schema |
Cache billing check
The same long content was sent 5 times: the 1st is billed at the regular price, and from the 2nd on the repeated part should be billed at the cache price.
Cache billing ratio49.9%
Partly works
On average 50% of repeated requests were billed at the cache price; the rest at the regular price.
Usage this run98.4KCached tokens39.3KNon-cached tokens59.1KAverage per run19.7K
Usage reportedReportedCache billingHappenedResultPartly works
Cache share by testThis is only the cache share the endpoint reported; the real discount is on the bill
Context length check
Long documents are sent tier by tier to check whether the whole document is read.
Verified up to 128K
32K / 128K: every tier was read in full.
Reference windowVerified up to 128KThe model center has no reference context window for this model yet.Tested context lengths32K / 128KTested from short to long, stopping at the first failure.
- 32KRead in full · 89.4K received
- 128KRead in full · 120.1K received
Token usage check
Reported usage is used; estimates appear only when none is reported.
Reported usage322.5KThe actual usage reported by the API; this page goes by it.Estimated usage157.4K-302.3KEstimated from this test's requests.Deviation7% aboveThe reported usage is above the estimate; check your bill.Usage checkAbove the estimateFigures are as reported by the API; your bill is authoritative.
Method: independent samples from the tested endpoint are compared against reference samples collected from official channels; billing, context and capability items come from real calls. API keys, request bodies and raw model output are not stored.
This report reflects the endpoint at the time of testing.
Reviews
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