OpenAI compatible API · Attested · Public status

Qwen: Qwen3.8-Flash-Next vs Z.ai: GLM 5.2

Qwen: Qwen3.8-Flash-Next has the lower published input-plus-output rate. Z.ai: GLM 5.2 has more Credits provider routes, the larger context window and the lower measured p50 time to first token. Compare price, speed, context, and privacy.

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

Qwen: Qwen3.8-Flash-Next has the lower published input-plus-output rate. Z.ai: GLM 5.2 has more Credits provider routes, the larger context window and the lower measured p50 time to first token.

$0.62245/1MQwen: Qwen3.8-Flash-Next cheapest route

$2.2999/1MZ.ai: GLM 5.2 cheapest route

1468 msQwen: Qwen3.8-Flash-Next fastest measured p50 TTFT via pearl

865 msZ.ai: GLM 5.2 fastest measured p50 TTFT via scaleway

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: Qwen3.8-Flash-NextZ.ai: GLM 5.2

Model idqwen/qwen3.8-flash-nextz-ai/glm-5.2

Publisher Alibaba Cloud Model Studio Z.AI

AI IQ — IQ 119#45

Context262,144 tokens1,048,576 tokens

Credits provider routes332

Cheapest route$0.62245/1M$2.2999/1M

Cached input$0.015825/1M to $0.05275/1M$0.131875/1M to $0.91996/1M

Privacy postureprovider posture varieshas Confidential route (E2EE + ZDR)

Fastest measured p50 TTFT1468 ms via pearl865 ms via scaleway

Highest measured throughputnot enough data163 tok/s via boundless

Recent route uptime range100.00%40.00% to 100.00%

Modes chat chat

Qwen: Qwen3.8-Flash-Next routes

Overview3 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Z.ai: GLM 5.2 routes

Overview32 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/qwen3.8-flash-next",
    messages=messages,
)

Questions

Which should I use, Qwen: Qwen3.8-Flash-Next or Z.ai: GLM 5.2?

Qwen: Qwen3.8-Flash-Next has the lower published input-plus-output rate. Z.ai: GLM 5.2 has more Credits provider routes, the larger context window and the lower measured p50 time to first token.

Is Qwen: Qwen3.8-Flash-Next or Z.ai: GLM 5.2 cheaper?

The current cheapest TrustedRouter route is $0.62245/1M for Qwen: Qwen3.8-Flash-Next and $2.2999/1M for Z.ai: GLM 5.2. The comparison uses current catalog prices and updates as provider pricing changes.

Is Qwen: Qwen3.8-Flash-Next or Z.ai: GLM 5.2 faster?

Current measured p50 time to first token is 1468 ms for Qwen: Qwen3.8-Flash-Next and 865 ms for Z.ai: GLM 5.2. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Qwen: Qwen3.8-Flash-Next and Z.ai: GLM 5.2 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between qwen/qwen3.8-flash-next and z-ai/glm-5.2. This makes side-by-side evals possible without maintaining two provider integrations.