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Audit result

Needs reviewUse with caution

Context boundary scan needs review: Uses canary markers to check whether long context is truncated.

Checked: Jun 7, 2026, 4:19 PM
Duration: 1003.5s
Target: api.lmm.best:9000
Provider: -
Model: gpt-5.5
Auditor: lmspeed.net

Check health scores

0-49 risk found50-79 review risk80-100 healthy

Model authenticity

Prompt and instruction

Response integrity and stability

100

Endpoint profile

Model authenticity

Needs review

Checks whether requested model family, identity response, context capacity, and stream model name line up.

Instruction conflict

Instruction conflict runtime error

Inconclusive

Plain-language meaning

Instruction conflict did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Context Truncation

Context boundary scan

50,000 chars

Retest

Plain-language meaning

Uses canary markers to check whether long context is truncated.

Audit evidence

50000: 5/5; 100000: timeout; 100,000-character probe: Request timed out after 120000 ms.

Max Context Chars Passed

50000

Context scan

Size	Prompt preview	Estimated tokens	Input tokens	Canaries	Response	Duration (s)	Status	Error
50000	I placed 5 markers [CANARY_N_XXXXXXXX] in the text. List ALL you can find, one per line. [CANARY_0_c1b773f7]xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...	12459	11379	5/5	[CANARY_0_c1b773f7] [CANARY_1_91c062d2] [CANARY_2_e1d8a5ba] [CANARY_3_bb10b817] [CANARY_4_e7a3621a]	6.26	pass	-
100000	I placed 5 markers [CANARY_N_XXXXXXXX] in the text. List ALL you can find, one per line. [CANARY_0_26342b92]xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...	24959	-	timeout	-	120	timeout	请求超时：120000 ms 内未收到响应。

Stream integrity

Stream integrity runtime error

Inconclusive

Plain-language meaning

Stream integrity did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Prompt and instruction

Inconclusive

Checks hidden prompt injection, prompt extraction, jailbreak leakage, and Web3 injection risk.

Token injection

Token injection runtime error

Inconclusive

Plain-language meaning

Token injection did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Prompt extraction

Prompt extraction runtime error

Inconclusive

Plain-language meaning

Prompt extraction did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Jailbreak and identity leakage

Jailbreak and identity leakage runtime error

Inconclusive

Plain-language meaning

Jailbreak and identity leakage did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Web3 prompt injection

Web3 prompt injection runtime error

Inconclusive

Plain-language meaning

Web3 prompt injection did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Response integrity and stability

Needs review

Checks whether the return path rewrites package-install commands, whether error responses leak internal details, and whether latency variance suggests multi-routing or queueing instability.

Tool-call substitution

Tool-call substitution runtime error

Inconclusive

Plain-language meaning

Tool-call substitution did not complete, so it cannot prove safety or risk.

Audit evidence

Request timed out after 120000 ms.

Error response leakage (AC-2)

Error response leakage

Passed

Plain-language meaning

Sends broken requests and scans error bodies/headers for API keys, upstream URLs, environment variables, paths, or stack traces.

Audit evidence

See the structured evidence and redacted technical preview below.

Error triggers

Trigger	Status	Severity	Leak	Where	Snippet	Response preview
malformed_json	400	none	none	-	-	{"error":{"code":"","message":"Invalid request: Invalid request: invalid JSON request body (request id: 202606071615142726351168268d9d6SQSpNje2)","type":"new_api_error"}}
invalid_model	503	none	none	-	-	{"error":{"code":"model_not_found","message":"No available channel for model nonexistent-xyz-999 under group default (distributor) (request id: 202606071615147203678108268d9d6ECY5bm6A)","type":"new_api_error"}}
wrong_content_type	400	none	none	-	-	{"error":{"code":"","message":"Model name not specified, model name cannot be empty (request id: 202606071615148653131248268d9d6ODqTuzoF)","type":"new_api_error"}}
missing_messages	503	none	none	-	-	{"error":{"code":"model_not_found","message":"No available channel for model claude-opus-4-6 under group default (distributor) (request id: 20260607161515199557078268d9d6DMWCSGR7)","type":"new_api_error"}}
unknown_endpoint	404	none	none	-	-	{"error":{"message":"Invalid URL (POST /v1/nonexistent-route)","type":"invalid_request_error","param":"","code":""}}
force_upstream_error	503	none	none	-	-	{"error":{"code":"model_not_found","message":"No available channel for model claude-opus-4-6 under group default (distributor) (request id: 202606071615153221624588268d9d688JHyM1B)","type":"new_api_error"}}
auth_probe	401	none	none	-	-	{"error":{"code":"","message":"Invalid token (request id: 202606071615154776156758268d9d6zm2ngDMk)","type":"new_api_error"}}

Latency Variance

Latency variance

CV=0.60

Retest

Plain-language meaning

Stable latency is consistent with one upstream; high variance may indicate queueing, multi-routing, or silent model switching.

Audit evidence

Successful 10/10; failed 0.

Successful probes

Failed probes

0.597

Latency statistics

Metric	Value
successful_probes	10 / 10
failed_probes	0
first_failure	-
min	1.078s
median	1.266s
max	4.207s
mean	1.721s
stdev	1.028s
coefficient_of_variation	0.597
largest_gap_median	1.380
verdict	bimodal

100

Endpoint profile

Normal

First identifies the network entry, model catalog, gateway fingerprint, and reachability behind this API.

Infrastructure Recon

Endpoint reachability check

Passed

Plain-language meaning

First checks whether the API accepts requests and returns an explainable response.

Audit evidence

See the structured evidence and redacted technical preview below.

A records

45.59.187.63

CNAME

Entry status

404

WHOIS

whois.iana.org

DNS records

Type	Value
A	45.59.187.63
CNAME	-
NS	-

WHOIS lookup

Item	Value
server	whois.iana.org
summary	domain: BEST; organisation: BestTLD Pty Ltd; organisation: The Best SAS; organisation: CentralNic
preview	% IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object domain: BEST organisation: BestTLD Pty Ltd address: Level 9 address: 1 Chifley Square address: Sydney NSW 2000 address: Australia contact: administrative name: CEO organisation: The Best SAS address: 295 Rue Du Professeur Paul Milliez address: Champigny Sur Marne 94500 address: France phone: +1.310.6518061 e-mail: [email protected] contact: technical name: CTO organisation: CentralNic address: Saddlers House, 4th Floor address: 44 Gutter Lane address: London EC2V 6BR address: United Kingdom of Great Britain and Northern Ireland (the) phone: +44 20 33 88 0600 fax-no: +44 20 33 88 0601 e-mail: [email protected] nserver: A.NIC.BEST 194.169.218.109 2001:67c:13cc:0:0:0:1:109 nserver: B.NIC.BEST 185.24.64.109 2a04:2b00:13cc:0:0:0:1:109 nserver: C.NIC.BEST 212.18.248.109 2a04:2b00:13ee:0:0:0:0:109 nserver: D.NIC.BEST 212.18.249.109 2a04:2b00:13ff:0:0:0:0:109 ds-rdata: 41279 8 2 d0c266b147e9fa7122215ccca36b23d43407bd2f03b2e3b6e917d350b31aa5fd ds-rdata: 13966 8 2 1b34271dc3cac4d1faa279893902bd3330eab9675dab6dba03fd163437e7d12a whois: whois.nic.best status: ACTIVE remarks: Registration information: https://www.domains.best created: 2014-02-20 changed: 2026-02-11 source: IANA

HTTP response headers

Item	Value
cache-control	max-age=604800
cache-version	b688f2fb5be447c25e5aa3bd063087a83db32a288bf6a4f35f2d8db310e40b14
connection	keep-alive
content-encoding	gzip
content-length	109
content-type	application/json; charset=utf-8
date	Sun, 07 Jun 2026 16:02:58 GMT
server	nginx
vary	Accept-Encoding
x-new-api-version	v0.0.0
x-oneapi-request-id	202606071602586133629588268d9d6IRFrbQRk

System identification response

Item	Value
HTTP	404
server	nginx
body preview	{"error":{"message":"Invalid URL (GET /v1)","type":"invalid_request_error","param":"","code":""}}

Technical details (redacted)

{"error":{"message":"Invalid URL (GET /v1)","type":"invalid_request_error","param":"","code":""}}

SSL/TLS

TLS certificate check

Certificate found

Notice

Plain-language meaning

The TLS certificate helps identify the encrypted entry layer, but does not prove model safety.

Audit evidence

See the structured evidence and redacted technical preview below.

A records

45.59.187.63

CNAME

Entry status

404

WHOIS

whois.iana.org

DNS records

Type	Value
A	45.59.187.63
CNAME	-
NS	-

WHOIS lookup

Item	Value
server	whois.iana.org
summary	domain: BEST; organisation: BestTLD Pty Ltd; organisation: The Best SAS; organisation: CentralNic
preview	% IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object domain: BEST organisation: BestTLD Pty Ltd address: Level 9 address: 1 Chifley Square address: Sydney NSW 2000 address: Australia contact: administrative name: CEO organisation: The Best SAS address: 295 Rue Du Professeur Paul Milliez address: Champigny Sur Marne 94500 address: France phone: +1.310.6518061 e-mail: [email protected] contact: technical name: CTO organisation: CentralNic address: Saddlers House, 4th Floor address: 44 Gutter Lane address: London EC2V 6BR address: United Kingdom of Great Britain and Northern Ireland (the) phone: +44 20 33 88 0600 fax-no: +44 20 33 88 0601 e-mail: [email protected] nserver: A.NIC.BEST 194.169.218.109 2001:67c:13cc:0:0:0:1:109 nserver: B.NIC.BEST 185.24.64.109 2a04:2b00:13cc:0:0:0:1:109 nserver: C.NIC.BEST 212.18.248.109 2a04:2b00:13ee:0:0:0:0:109 nserver: D.NIC.BEST 212.18.249.109 2a04:2b00:13ff:0:0:0:0:109 ds-rdata: 41279 8 2 d0c266b147e9fa7122215ccca36b23d43407bd2f03b2e3b6e917d350b31aa5fd ds-rdata: 13966 8 2 1b34271dc3cac4d1faa279893902bd3330eab9675dab6dba03fd163437e7d12a whois: whois.nic.best status: ACTIVE remarks: Registration information: https://www.domains.best created: 2014-02-20 changed: 2026-02-11 source: IANA

HTTP response headers

Item	Value
cache-control	max-age=604800
cache-version	b688f2fb5be447c25e5aa3bd063087a83db32a288bf6a4f35f2d8db310e40b14
connection	keep-alive
content-encoding	gzip
content-length	109
content-type	application/json; charset=utf-8
date	Sun, 07 Jun 2026 16:02:58 GMT
server	nginx
vary	Accept-Encoding
x-new-api-version	v0.0.0
x-oneapi-request-id	202606071602586133629588268d9d6IRFrbQRk

System identification response

Item	Value
HTTP	404
server	nginx
body preview	{"error":{"message":"Invalid URL (GET /v1)","type":"invalid_request_error","param":"","code":""}}

Technical details (redacted)

{"error":{"message":"Invalid URL (GET /v1)","type":"invalid_request_error","param":"","code":""}}

Model List

Model catalog enumeration

Passed

Plain-language meaning

The model catalog helps verify which models this endpoint claims to support.

Audit evidence

See the structured evidence and redacted technical preview below.

Model count

Requested model listed

yes

Model catalog sample

Model
gpt-5.2
gpt-5.3-codex
gpt-5.4
gpt-5.4-mini
gpt-5.5

Infrastructure Fingerprint

Infrastructure fingerprint

unknown

Notice

Plain-language meaning

Framework fingerprinting identifies the gateway stack; it is informational and helps explain other anomalies.

Audit evidence

HTTP 404; HTTP 200; HTTP 404

Framework

unknown

Confidence

unknown

Fingerprint probes

Probe	Path	Status	Framework	server	Headers	Signals	Error	Response preview
landing	/	404	-	nginx	server=nginx	-	-	{"error":{"message":"Invalid URL (GET /v1)","type":"invalid_request_error","param":"","code":""}}
models	/v1/models	200	-	nginx	server=nginx	-	-	{"data":[{"id":"gpt-5.2","object":"model","created":1626777600,"owned_by":"openai","supported_endpoint_types":["openai"]},{"id":"gpt-5.3-codex","object":"model","created":1626777600,"owned_by":"openai","supported_endpoint_types":["openai"]},{"id":"gpt-5.4","object":"model","created":1626777600,"owned_by":"openai","supported_endpoint_types":["openai"]},{"id":"gpt-5.4-mini","object":"model","created":1626777600,"owned_by":"openai","supported_endpoint_types":["openai"]},{"id":"gpt-5.5","object":"model","created":1626777600,"owned_by":"openai","supported_endpoint_types":["openai"]}],"object":"list","success":true}
notfound	/nonexistent-abc12345xyz	404	-	nginx	server=nginx	-	-	{"error":{"message":"Invalid URL (GET /v1/nonexistent-abc12345xyz)","type":"invalid_request_error","param":"","code":""}}

Recommended actions

Use for low-risk tasks, verify critical work

Model authenticity has caution signals. Basic chat may be fine, but verify important output elsewhere.

View audit notes

Findings

Context boundary scan

Caution

Uses canary markers to check whether long context is truncated.

Latency variance

Caution

Stable latency is consistent with one upstream; high variance may indicate queueing, multi-routing, or silent model switching.

Evidence summary

context_window

Context window

Context window needs review.

latency_variance

Latency variance

Latency variance needs review.

Dimension	lmspeed	hvoy.ai	cctest.ai
Token injectionCompare actual token usage with the expected count	Covered	Not covered	Covered
Prompt extractionProbe hidden system prompt leakage	Covered	Not covered	Not covered
Identity substitutionDetect whether Claude is actually answered by another model	Covered	Covered	Not covered
Jailbreak defenseCheck common jailbreak vectors	Covered	Not covered	Not covered
Context truncationFind the real context-window boundary	Covered	Not covered	Not covered
Tool-call rewrite (AC-1.a)Detect rewritten package commands and tool arguments	Covered	Not covered	Not covered
Error response leakage (AC-2)Probe credentials, paths, and internal field leakage	Covered	Not covered	Not covered
Stream integrity (SSE)Validate event types, usage, and thinking signatures	Covered	Covered	Not covered
Web3 injectionCheck whether signing context is polluted by the relay layer	Covered	Not covered	Not covered
Channel fingerprintProtobuf signatures and multimodal interpretation checks	In designSoon	Not covered	Covered

A deep API relay audit for api.lmm.best:9000 gpt-5.5

Audit result

Check health scores

Model authenticity

Instruction conflict runtime error

Context boundary scan

Stream integrity runtime error

Prompt and instruction

Token injection runtime error

Prompt extraction runtime error

Jailbreak and identity leakage runtime error

Web3 prompt injection runtime error

Response integrity and stability

Tool-call substitution runtime error

Error response leakage

Latency variance

Endpoint profile

Endpoint reachability check

TLS certificate check

Model catalog enumeration

Infrastructure fingerprint

Recommended actions

Use for low-risk tasks, verify critical work

Findings

Evidence summary

Notes, principles, and references

More than a speed test: inspect whether the relay path was tampered with

How the 11-step audit breaks down relay risk

Infrastructure reconnaissance

Token injection (AC-1)

Prompt extraction

Identity substitution

Context truncation

Tool-call rewrite

Error response leakage

Stream integrity & Web3