OpenAI compatible API · Attested · Public status

OpenAI: gpt-oss-120b vs Z.ai: GLM 5V Turbo

gpt-oss-120b vs Z.ai: GLM 5V Turbo: 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

OpenAI: gpt-oss-120b has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while Z.ai: GLM 5V Turbo has the larger context window. Current TrustedRouter probes show OpenAI: gpt-oss-120b with the lower p50 TTFT.

$0.211/1MOpenAI: gpt-oss-120b cheapest route

$5.486/1MZ.ai: GLM 5V Turbo cheapest route

1122 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via sail-research

2088 msZ.ai: GLM 5V Turbo fastest measured p50 TTFT via zai

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.

OpenAI: gpt-oss-120bZ.ai: GLM 5V Turbo

Model idopenai/gpt-oss-120bz-ai/glm-5v-turbo

Publisher OpenAI Z.AI

AI IQ IQ 98#99 —

Context131,072 tokens202,752 tokens

Credits provider routes223

Cheapest route$0.211/1M$5.486/1M

Cached input$0.015825/1M to $0.1055/1M$0.2532/1M to $0.3165/1M

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT1122 ms via sail-research2088 ms via zai

Highest measured throughput140 tok/s via io-netnot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

OpenAI: gpt-oss-120b routes

Overview22 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Z.ai: GLM 5V Turbo routes

Overview3 Credits routes
PricingInput, cached input, and output rates
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="openai/gpt-oss-120b",
    messages=messages,
)

Questions

Which should I use, OpenAI: gpt-oss-120b or Z.ai: GLM 5V Turbo?

Is OpenAI: gpt-oss-120b or Z.ai: GLM 5V Turbo cheaper?

The current cheapest TrustedRouter route is $0.211/1M for OpenAI: gpt-oss-120b and $5.486/1M for Z.ai: GLM 5V Turbo. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or Z.ai: GLM 5V Turbo faster?

Current measured p50 time to first token is 1122 ms for OpenAI: gpt-oss-120b and 2088 ms for Z.ai: GLM 5V Turbo. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and Z.ai: GLM 5V Turbo with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between openai/gpt-oss-120b and z-ai/glm-5v-turbo. This makes side-by-side evals possible without maintaining two provider integrations.