OpenAI compatible API · Attested · Public status

Qwen: Qwen3.5-27B vs Z.ai: GLM 5.1

Compare Qwen: Qwen3.5-27B and Z.ai: GLM 5.1 by providers, context, price, and TrustedRouter route support.

Verify gateway

Onebase URL to migrate

100sof models and routes

0prompt or output logs. Always.

Compare routesProviders, price, context, and policy posture in one view.

Use auto when uptime mattersKeep a primary model and let fallback handle provider failures.

Same API shapeUse the OpenAI client and set the model you want.

Practical read

Qwen: Qwen3.5-27B has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.1 has more provider fallback routes, while Qwen: Qwen3.5-27B has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$2.3625/1MQwen: Qwen3.5-27B cheapest route

$4.263/1MZ.ai: GLM 5.1 cheapest route

not enough dataQwen: Qwen3.5-27B measured p50 TTFT

not enough dataZ.ai: GLM 5.1 measured p50 TTFT

Qwen: Qwen3.5-27BZ.ai: GLM 5.1

Model idqwen/qwen3.5-27bz-ai/glm-5.1

PublisherDeepInfraZ.AI

AI IQ — IQ 114#32

Context262,144 tokens204,800 tokens

Provider routes824

Cheapest route$2.3625/1M$4.263/1M

Privacy postureprovider posture varieshas confidential-compute route

Modes chat chat

Qwen: Qwen3.5-27B routes

Overview8 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

Z.ai: GLM 5.1 routes

Overview24 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

Production choice

Pick a default model. Keep fallback enabled.

TrustedRouter is useful when you know the model you want, but still need provider rollover, budget limits, usage records, and a prompt path you can verify.

OpenAI clientPython

client = OpenAI(
    base_url="https://gchircrcif.eu-west-3.awsapprunner.com/v1",
    api_key="sk-tr-v1-..."
)

response = client.chat.completions.create(
    model="qwen/qwen3.5-27b",
    messages=messages,
)