A newer test record is availableThis report preserves the result at the time of testing and remains valid as a record. You can also view the newer report。
Identity confirmedModel verified
Confirmed as the official claude-opus-5-5
Behavior matches the official claude-opus-5-5.
Brand consistency96/100
Model match score (claude-opus-5-5)95/100
Checks14/17 Passed
- Providers
- SynthAPI
- Claimed model
- claude-opus-5-5
- Plan
- Full check
- Reference
- 108 official models
- Requests
- 16
- Duration
- 1 分钟
01Identity check
Behaviour compared with each official referenceIndependent sample A采样 AValidIndependent sample B采样 BValidIndependent sample C采样 CValidReference108 official models · 3/3 Valid
Answer by answer3 answers: 3 match claude-opus-5-5
Similarity to official modelsTop 5
- claude-opus-5-5Claimed model95%
- gpt-5.41%
- claude-fable-5-11%
- kimi-k31%
- gpt-6.1-sol<1%
02Test details
17 items · 14 passed · 3 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-opus-5-5 |
| 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 | 3 / 3 valid | All independent samples can be used for comparison |
| C-02 | Brand consistency | Match | Behavior belongs to the Anthropic Claude family; brand match score 96 |
| C-03 | Model consistency | Match | 与官方 claude-opus-5-5 吻合，型号一致度 95 |
| C-04 | Cross-brand swap check | None found | Similarity to other brands' models totals under 5% |
| Billing & capabilities | |||
| D-01 | Cache billing | Does not work | The vendor offers a cache price for this model, but none of the repeated requests were billed at it. |
| D-02 | Context length | 32K passed | Read in full up to 32K; 128K failed: Input truncated; about 88K actually received. |
| 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 |
03Which apps can connect
Tried once per app with claude-opus-5-5, the way each app connectsUsing this test’s address, key and model, we test responses and tool calls in each app’s API format. We do not launch the apps or test installation, sign-in or complete tasks.
| Software | Result | Methodology |
|---|---|---|
| Claude Code | Connects | Replied normally and called the toolConnected the way Claude Code does (Anthropic format) |
| Codex | Didn't connect | No tool was called. App features such as reading files or running commands may not work. Check that the model and API support tool callsConnected the way Codex does (OpenAI Responses format) |
| Cherry Studio, Chatbox, LobeChat, Open WebUI, Cline | Connects | Replied normally and called the toolConnected the way Cherry Studio and similar apps do (OpenAI-compatible format) |
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 ratio0.0%
Does not work
The vendor offers a cache price for this model, but none of the repeated requests were billed at it.
Usage this run28.5KCached tokens0Non-cached tokens28.5KAverage per run5.7K
Usage reportedReportedCache billingDid not happenResultDoes not work
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 32K
Read in full up to 32K; 128K failed: Input truncated; about 88K actually received.
Reference windowVerified up to 32KThe 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 · 45.9K received
- 128KInput truncated; about 88K actually received
Token usage check
Reported usage is used; estimates appear only when none is reported.
Reported usage341.3KThe actual usage reported by the API; this page goes by it.Estimated usage1.3M-1.8MEstimated from this test's requests.Deviation73% belowThe reported usage is below the estimate, possibly because of how tokens are counted or compressed.Usage checkBelow 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.
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claude-opus-5-5 verification report
A newer test record is availableThis report preserves the result at the time of testing and remains valid as a record. You can also view the newer report。
Identity confirmedModel verified
Confirmed as the official claude-opus-5-5
Behavior matches the official claude-opus-5-5.
Brand consistency96/100
Model match score (claude-opus-5-5)95/100
Checks14/17 Passed
- Providers
- SynthAPI
- Claimed model
- claude-opus-5-5
- Plan
- Full check
- Reference
- 108 official models
- Requests
- 16
- Duration
- 1 分钟
01Identity check
Behaviour compared with each official referenceIndependent sample A采样 AValidIndependent sample B采样 BValidIndependent sample C采样 CValidReference108 official models · 3/3 Valid
Answer by answer3 answers: 3 match claude-opus-5-5
Similarity to official modelsTop 5
- claude-opus-5-5Claimed model95%
- gpt-5.41%
- claude-fable-5-11%
- kimi-k31%
- gpt-6.1-sol<1%
02Test details
17 items · 14 passed · 3 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-opus-5-5 |
| 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 | 3 / 3 valid | All independent samples can be used for comparison |
| C-02 | Brand consistency | Match | Behavior belongs to the Anthropic Claude family; brand match score 96 |
| C-03 | Model consistency | Match | 与官方 claude-opus-5-5 吻合，型号一致度 95 |
| C-04 | Cross-brand swap check | None found | Similarity to other brands' models totals under 5% |
| Billing & capabilities | |||
| D-01 | Cache billing | Does not work | The vendor offers a cache price for this model, but none of the repeated requests were billed at it. |
| D-02 | Context length | 32K passed | Read in full up to 32K; 128K failed: Input truncated; about 88K actually received. |
| 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 |
03Which apps can connect
Tried once per app with claude-opus-5-5, the way each app connectsUsing this test’s address, key and model, we test responses and tool calls in each app’s API format. We do not launch the apps or test installation, sign-in or complete tasks.
| Software | Result | Methodology |
|---|---|---|
| Claude Code | Connects | Replied normally and called the toolConnected the way Claude Code does (Anthropic format) |
| Codex | Didn't connect | No tool was called. App features such as reading files or running commands may not work. Check that the model and API support tool callsConnected the way Codex does (OpenAI Responses format) |
| Cherry Studio, Chatbox, LobeChat, Open WebUI, Cline | Connects | Replied normally and called the toolConnected the way Cherry Studio and similar apps do (OpenAI-compatible format) |
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 ratio0.0%
Does not work
The vendor offers a cache price for this model, but none of the repeated requests were billed at it.
Usage this run28.5KCached tokens0Non-cached tokens28.5KAverage per run5.7K
Usage reportedReportedCache billingDid not happenResultDoes not work
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 32K
Read in full up to 32K; 128K failed: Input truncated; about 88K actually received.
Reference windowVerified up to 32KThe 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 · 45.9K received
- 128KInput truncated; about 88K actually received
Token usage check
Reported usage is used; estimates appear only when none is reported.
Reported usage341.3KThe actual usage reported by the API; this page goes by it.Estimated usage1.3M-1.8MEstimated from this test's requests.Deviation73% belowThe reported usage is below the estimate, possibly because of how tokens are counted or compressed.Usage checkBelow 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.
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