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Qwen: Qwen3 14B vs Z.ai: GLM 5.1

Try both on us. Starter credit covers your first requests, then one key routes Qwen3 14B and GLM 5.1. Switch by changing the model name.

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

Qwen: Qwen3 14B has the lower published input-plus-output rate. Z.ai: GLM 5.1 has more Credits provider routes, the larger context window and the lower measured p50 time to first token.

$0.28485/1MQwen: Qwen3 14B cheapest route

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

1329 msQwen: Qwen3 14B fastest measured p50 TTFT via greenference

854 msZ.ai: GLM 5.1 fastest measured p50 TTFT via friendli

The price comparison adds each route's rate for one million input tokens and one million output tokens; your cost depends on your input/output mix. 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.

Qwen: Qwen3 14BZ.ai: GLM 5.1

Model idqwen/qwen3-14bz-ai/glm-5.1

Publisher Alibaba Cloud Model Studio Z.AI

AI IQ — IQ 113#62

Context40,960 tokens202,752 tokens

Credits provider routes513

Cheapest route$0.28485/1M$4.2833/1M

Cached input$0.04009/1M$0.10339/1M to $0.738648/1M

Privacy posturehas ZDR routehas Confidential route (E2EE + ZDR)

Fastest measured p50 TTFT1329 ms via greenference854 ms via friendli

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%83.33% to 100.00%

Modes chat chat

Qwen: Qwen3 14B routes

Overview5 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Z.ai: GLM 5.1 routes

Overview13 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/qwen3-14b",
    messages=messages,
)

Questions

Which should I use, Qwen: Qwen3 14B or Z.ai: GLM 5.1?

Qwen: Qwen3 14B has the lower published input-plus-output rate. Z.ai: GLM 5.1 has more Credits provider routes, the larger context window and the lower measured p50 time to first token.

Is Qwen: Qwen3 14B or Z.ai: GLM 5.1 cheaper?

The current cheapest TrustedRouter route is $0.28485/1M for Qwen: Qwen3 14B and $4.2833/1M for Z.ai: GLM 5.1. The comparison uses current catalog prices and updates as provider pricing changes.

Is Qwen: Qwen3 14B or Z.ai: GLM 5.1 faster?

Current measured p50 time to first token is 1329 ms for Qwen: Qwen3 14B and 854 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 Qwen: Qwen3 14B 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/qwen3-14b and z-ai/glm-5.1. This makes side-by-side evals possible without maintaining two provider integrations.