OpenAI compatible API · Attested · Public status

Qwen3.7 Flash vs Z.ai: GLM 5.1

Qwen3.7 Flash vs Z.ai: GLM 5.1: compare current API pricing, context, provider routes, privacy, p50 latency, and OpenAI-compatible access.

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

Monthly evidence

Qwen3.7 Flash has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.1 has more provider fallback routes, while Qwen3.7 Flash has the larger context window. Current TrustedRouter probes show Z.ai: GLM 5.1 with the lower p50 TTFT.

$0.1688/1MQwen3.7 Flash cheapest route

$4.2833/1MZ.ai: GLM 5.1 cheapest route

2381 msQwen3.7 Flash fastest measured p50 TTFT via alibaba

1664 msZ.ai: GLM 5.1 fastest measured p50 TTFT via gmi

Prices and live route measurements can change. Use the monthly reports when you need a stable evidence window, then run a small task-specific eval before choosing a production default.

Qwen3.7 FlashZ.ai: GLM 5.1

Model idqwen/qwen3.7-flashz-ai/glm-5.1

Publisher Alibaba Cloud Model Studio Z.AI

AI IQ IQ 92#112 IQ 114#42

Context1,048,576 tokens200,000 tokens

Credits provider routes115

Cheapest route$0.1688/1M$4.2833/1M

Cached input$0.01/1M to $0.0422/1M$0.10339/1M to $0.680475/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFT2381 ms via alibaba1664 ms via gmi

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%0.00% to 100.00%

Modes chat chat

Qwen3.7 Flash routes

Overview1 Credits routes

Z.ai: GLM 5.1 routes

Overview15 Credits routes
PricingInput, cached input, and output rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

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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="qwen/qwen3.7-flash",
    messages=messages,
)

Questions

Which should I use, Qwen3.7 Flash or Z.ai: GLM 5.1?

Is Qwen3.7 Flash or Z.ai: GLM 5.1 cheaper?

The current cheapest TrustedRouter route is $0.1688/1M for Qwen3.7 Flash and $4.2833/1M for Z.ai: GLM 5.1. The comparison uses current catalog prices and updates as provider pricing changes.

Is Qwen3.7 Flash or Z.ai: GLM 5.1 faster?

Current measured p50 time to first token is 2381 ms for Qwen3.7 Flash and 1664 ms for Z.ai: GLM 5.1. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Qwen3.7 Flash and Z.ai: GLM 5.1 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between qwen/qwen3.7-flash and z-ai/glm-5.1. This makes side-by-side evals possible without maintaining two provider integrations.