OpenAI compatible API · Attested · Public status

Google: Gemma 3 27B vs Z.ai: GLM 5.2

Compare Google: Gemma 3 27B and Z.ai: GLM 5.2 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

Google: Gemma 3 27B has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.2 has more provider fallback routes, while Z.ai: GLM 5.2 has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$0.252/1MGoogle: Gemma 3 27B cheapest route

$3.927/1MZ.ai: GLM 5.2 cheapest route

not enough dataGoogle: Gemma 3 27B measured p50 TTFT

not enough dataZ.ai: GLM 5.2 measured p50 TTFT

Google: Gemma 3 27BZ.ai: GLM 5.2

Model idgoogle/gemma-3-27b-itz-ai/glm-5.2

PublisherGoogle AI StudioZ.AI

AI IQ — IQ 120#16

Context262,144 tokens1,048,576 tokens

Provider routes843

Cheapest route$0.252/1M$3.927/1M

Privacy posturehas ZDR routehas provider E2EE route

Modes chat chat

Google: Gemma 3 27B routes

Overview8 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

Z.ai: GLM 5.2 routes

Overview43 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="google/gemma-3-27b-it",
    messages=messages,
)