OpenAI compatible API. Attested gateway. Public status.

Z.ai: GLM 5 vs OpenAI: GPT-4.1 Mini

Compare Z.ai: GLM 5 and OpenAI: GPT-4.1 Mini by providers, context, price, and TrustedRouter route support.

Verify gateway

1 URLbase_url migration

100smodels and routes

0prompt logs by default

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

OpenAI: GPT-4.1 Mini has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5 has more provider fallback routes, while OpenAI: GPT-4.1 Mini has the larger context window. Current TrustedRouter probes show OpenAI: GPT-4.1 Mini with the lower p50 TTFT.

$2.772/1MZ.ai: GLM 5 cheapest route

$2.2/1MOpenAI: GPT-4.1 Mini cheapest route

5691 msZ.ai: GLM 5 measured p50 TTFT

5009 msOpenAI: GPT-4.1 Mini measured p50 TTFT

Z.ai: GLM 5OpenAI: GPT-4.1 Mini

Model idz-ai/glm-5openai/gpt-4.1-mini

PublisherZ.AIOpenAI

AI IQ IQ 107#40 —

Context204,800 tokens1,047,576 tokens

Provider routes132

Cheapest route$2.772/1M$2.2/1M

Privacy posturehas provider E2EE routeprovider posture varies

Modes chat chat

Z.ai: GLM 5 routes

Overview13 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

OpenAI: GPT-4.1 Mini routes

Overview2 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://api.trustedrouter.com/v1",
    api_key="sk-tr-v1-..."
)

response = client.chat.completions.create(
    model="z-ai/glm-5",
    messages=messages,
)