OpenAI compatible API. Attested gateway. Public status.

DeepSeek: DeepSeek V4 Pro vs Z.ai: GLM 5.1

Compare DeepSeek: DeepSeek V4 Pro and Z.ai: GLM 5.1 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

DeepSeek: DeepSeek V4 Pro has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.1 has more provider fallback routes, while DeepSeek: DeepSeek V4 Pro has the larger context window. Current TrustedRouter probes show Z.ai: GLM 5.1 with the lower p50 TTFT.

$1.4355/1MDeepSeek: DeepSeek V4 Pro cheapest route
$4.62/1MZ.ai: GLM 5.1 cheapest route
3841 msDeepSeek: DeepSeek V4 Pro measured p50 TTFT
3428 msZ.ai: GLM 5.1 measured p50 TTFT
DeepSeek: DeepSeek V4 ProZ.ai: GLM 5.1
Model iddeepseek/deepseek-v4-proz-ai/glm-5.1
PublisherDeepSeekZ.AI
AI IQ IQ 109#38 IQ 113#27
Context1,048,576 tokens204,800 tokens
Provider routes2224
Cheapest route$1.4355/1M$4.62/1M
Privacy posturehas ZDR routehas provider E2EE route
Modes chat chat

DeepSeek: DeepSeek V4 Pro routes

Z.ai: GLM 5.1 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="deepseek/deepseek-v4-pro",
    messages=messages,
)

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