OpenAI compatible API. Attested gateway. Public status.

Z.ai: GLM 5.2 vs Google: Gemini 3 Flash Preview

Compare Z.ai: GLM 5.2 and Google: Gemini 3 Flash Preview 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

Google: Gemini 3 Flash Preview 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. Current TrustedRouter probes show Z.ai: GLM 5.2 with the lower p50 TTFT.

$4.466/1MZ.ai: GLM 5.2 cheapest route
$3.85/1MGoogle: Gemini 3 Flash Preview cheapest route
2798 msZ.ai: GLM 5.2 measured p50 TTFT
10471 msGoogle: Gemini 3 Flash Preview measured p50 TTFT
Z.ai: GLM 5.2Google: Gemini 3 Flash Preview
Model idz-ai/glm-5.2google/gemini-3-flash-preview
PublisherZ.AIGemini
AI IQ IQ 121#13 IQ 113#26
Context1,048,576 tokens1,048,576 tokens
Provider routes324
Cheapest route$4.466/1M$3.85/1M
Privacy posturehas provider E2EE routeprovider posture varies
Modes chat chat

Z.ai: GLM 5.2 routes

Google: Gemini 3 Flash Preview routes

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-5.2",
    messages=messages,
)

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