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Google Veo 3.1 Fast vs Z.ai: GLM 5.3

Try both on us. Starter credit covers your first requests, then one key routes Google Veo 3.1 Fast and GLM 5.3. 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

Z.ai: GLM 5.3 has more Credits provider routes and the larger context window. A published Credits price comparison is not available for both models. There is not enough recent probe data to compare speed.

selected routeGoogle Veo 3.1 Fast cheapest route

$3.458818/1MZ.ai: GLM 5.3 cheapest route

not enough dataGoogle Veo 3.1 Fast fastest measured p50 TTFT

673 msZ.ai: GLM 5.3 fastest measured p50 TTFT via wafer

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.

Google Veo 3.1 FastZ.ai: GLM 5.3

Model idgoogle/veo-3.1-fastz-ai/glm-5.3

Publisher Google AI Studio Z.AI

AI IQ — IQ 124#28

Context2,500 tokens1,048,576 tokens

Credits provider routes233

Cheapest routeselected route$3.458818/1M

Cached inputNot published$0.1055/1M to $0.84189/1M

Privacy posturehas ZDR routehas Confidential route (E2EE + ZDR)

Fastest measured p50 TTFTnot enough data673 ms via wafer

Highest measured throughputnot enough data196 tok/s via thinkingmachines

Recent route uptime rangenot enough data85.71% to 100.00%

Modes chat

Google Veo 3.1 Fast routes

Overview2 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Z.ai: GLM 5.3 routes

Overview33 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.

Questions

Which should I use, Google Veo 3.1 Fast or Z.ai: GLM 5.3?

Is Google Veo 3.1 Fast or Z.ai: GLM 5.3 cheaper?

The current cheapest TrustedRouter route is selected route for Google Veo 3.1 Fast and $3.458818/1M for Z.ai: GLM 5.3. The comparison uses current catalog prices and updates as provider pricing changes.

Is Google Veo 3.1 Fast or Z.ai: GLM 5.3 faster?

Current measured p50 time to first token is not enough data for Google Veo 3.1 Fast and 673 ms for Z.ai: GLM 5.3. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Google Veo 3.1 Fast and Z.ai: GLM 5.3 with the same API?

Both use the same TrustedRouter base URL and API key. At least one of them is not a chat model, so the request can differ as well as the model id: the API docs list the route for each kind of model.