OpenAI compatible API · Attested · Public status

Z.ai: GLM 5.1 vs 0GM-1.0-35B-A3B-SIA

Z.ai: GLM 5.1 vs 0GM-1.0-35B-A3B-SIA: 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

0GM-1.0-35B-A3B-SIA has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.1 has more provider fallback routes, while Z.ai: GLM 5.1 has the larger context window. Current TrustedRouter probes show Z.ai: GLM 5.1 with the lower p50 TTFT.

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

$3.95836/1M0GM-1.0-35B-A3B-SIA cheapest route

1351 msZ.ai: GLM 5.1 fastest measured p50 TTFT via friendli

3158 ms0GM-1.0-35B-A3B-SIA fastest measured p50 TTFT via zero-g

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.

Z.ai: GLM 5.10GM-1.0-35B-A3B-SIA

Model idz-ai/glm-5.1zero-g/0gm-1.0-35b-a3b-sia

Publisher Z.AI 0G Private Computer

AI IQ IQ 114#39 —

Context204,800 tokens32,768 tokens

Provider routes231

Cheapest route$4.2833/1M$3.95836/1M

Privacy posturehas provider E2EE routehas confidential-compute route

Fastest measured p50 TTFT1351 ms via friendli3158 ms via zero-g

Highest measured throughputnot enough datanot enough data

Recent route uptime range50.00% to 100.00%100.00%

Modes chat chat

Z.ai: GLM 5.1 routes

Overview23 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

0GM-1.0-35B-A3B-SIA routes

Overview1 endpoints

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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="z-ai/glm-5.1",
    messages=messages,
)

Questions

Which should I use, Z.ai: GLM 5.1 or 0GM-1.0-35B-A3B-SIA?

Is Z.ai: GLM 5.1 or 0GM-1.0-35B-A3B-SIA cheaper?

The current cheapest TrustedRouter route is $4.2833/1M for Z.ai: GLM 5.1 and $3.95836/1M for 0GM-1.0-35B-A3B-SIA. The comparison uses current catalog prices and updates as provider pricing changes.

Is Z.ai: GLM 5.1 or 0GM-1.0-35B-A3B-SIA faster?

Current measured p50 time to first token is 1351 ms for Z.ai: GLM 5.1 and 3158 ms for 0GM-1.0-35B-A3B-SIA. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Z.ai: GLM 5.1 and 0GM-1.0-35B-A3B-SIA with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between z-ai/glm-5.1 and zero-g/0gm-1.0-35b-a3b-sia. This makes side-by-side evals possible without maintaining two provider integrations.