OpenAI compatible API · Attested · Public status

System1 s1-vision (GLOBAL) vs Z.ai: GLM 5.2

System1 s1-vision (GLOBAL) vs Z.ai: GLM 5.2: 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

System1 s1-vision (GLOBAL) has the lower published input-plus-output rate. Z.ai: GLM 5.2 has more Credits provider routes. There is not enough recent probe data to compare speed.

$0.04009/1MSystem1 s1-vision (GLOBAL) cheapest route

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

not enough dataSystem1 s1-vision (GLOBAL) fastest measured p50 TTFT

1343 msZ.ai: GLM 5.2 fastest measured p50 TTFT via lyceum

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.

System1 s1-vision (GLOBAL)Z.ai: GLM 5.2

Model idsystem1models/s1-visionz-ai/glm-5.2

Publishersystem1models Z.AI

AI IQ — IQ 119#42

Context0 tokens1,048,576 tokens

Credits provider routes130

Cheapest route$0.04009/1M$2.2999/1M

Cached inputNot published$0.110775/1M to $0.990645/1M

Privacy postureprovider posture varieshas Confidential route (E2EE + ZDR)

Fastest measured p50 TTFTnot enough data1343 ms via lyceum

Highest measured throughputnot enough datanot enough data

Recent route uptime rangenot enough data100.00%

Modes decide chat

System1 s1-vision (GLOBAL) routes

Overview1 Credits routes

Z.ai: GLM 5.2 routes

Overview30 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.

POST /api/alpha/decidecurl

curl https://api.trustedrouter.com/api/alpha/decide \
  -H "Authorization: Bearer sk-tr-v1-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "system1models/s1-vision",
    "state": "Customer: I was charged twice for order A-1.",
    "questions": {
      "refund": {"type": "boolean", "instructions": "Is a refund requested?"}
    }
  }'

Decision models: the API, the models, the numbers

Questions

Which should I use, System1 s1-vision (GLOBAL) or Z.ai: GLM 5.2?

System1 s1-vision (GLOBAL) has the lower published input-plus-output rate. Z.ai: GLM 5.2 has more Credits provider routes. There is not enough recent probe data to compare speed.

Is System1 s1-vision (GLOBAL) or Z.ai: GLM 5.2 cheaper?

The current cheapest TrustedRouter route is $0.04009/1M for System1 s1-vision (GLOBAL) and $2.2999/1M for Z.ai: GLM 5.2. The comparison uses current catalog prices and updates as provider pricing changes.

Is System1 s1-vision (GLOBAL) or Z.ai: GLM 5.2 faster?

Current measured p50 time to first token is not enough data for System1 s1-vision (GLOBAL) and 1343 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 System1 s1-vision (GLOBAL) and Z.ai: GLM 5.2 with the same API?

Yes. Both take the same request on POST /api/alpha/decide, with the same TrustedRouter base URL and API key, so a side-by-side eval changes only the model id between system1models/s1-vision and z-ai/glm-5.2. System1 s1-vision (GLOBAL) does not take chat requests.