OpenAI compatible API · Attested · Public status

Z.ai: GLM 5.2 vs DeepSeek: DeepSeek V4 Flash

Compare Z.ai: GLM 5.2 and DeepSeek: DeepSeek V4 Flash by providers, context, price, and TrustedRouter route support.

Verify gateway

Onebase URL to migrate

100sof models and routes

Noneprompt 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 Flash 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.

$2.07942/1MZ.ai: GLM 5.2 cheapest route

$0.2835/1MDeepSeek: DeepSeek V4 Flash cheapest route

1832 msZ.ai: GLM 5.2 measured p50 TTFT

2075 msDeepSeek: DeepSeek V4 Flash measured p50 TTFT

Z.ai: GLM 5.2DeepSeek: DeepSeek V4 Flash

Model idz-ai/glm-5.2deepseek/deepseek-v4-flash

PublisherZ.AIDeepSeek

AI IQ IQ 120#16 IQ 109#42

Context1,048,576 tokens1,048,576 tokens

Provider routes3919

Cheapest route$2.07942/1M$0.2835/1M

Privacy posturehas provider E2EE routehas ZDR route

Modes chat chat

Z.ai: GLM 5.2 routes

Overview39 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

DeepSeek: DeepSeek V4 Flash routes

Overview19 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-5.2",
    messages=messages,
)