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Mistral: Voxtral 4B TTS vs Z.ai: GLM 5.2

Try both on us. Starter credit covers your first requests, then one key routes Voxtral 4B TTS and GLM 5.2. 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 5.2 has more Credits provider routes. A published Credits price comparison is not available for both models. There is not enough recent probe data to compare speed.

selected routeMistral: Voxtral 4B TTS cheapest route

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

not enough dataMistral: Voxtral 4B TTS fastest measured p50 TTFT

658 msZ.ai: GLM 5.2 fastest measured p50 TTFT via friendli

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.

Mistral: Voxtral 4B TTSZ.ai: GLM 5.2

Model idmistralai/voxtral-4b-tts-2603z-ai/glm-5.2

Publisher Mistral Z.AI

AI IQ — IQ 118#53

Context0 tokens1,048,576 tokens

Credits provider routes133

Cheapest routeselected route$2.2999/1M

Cached inputNot applicable$0.131875/1M to $0.758545/1M

Privacy posturehas Confidential route (E2EE + ZDR)has Confidential route (E2EE + ZDR)

Fastest measured p50 TTFTnot enough data658 ms via friendli

Highest measured throughputnot enough data238 tok/s via telnyx

Recent route uptime rangenot enough data57.14% to 100.00%

Modes chat

Mistral: Voxtral 4B TTS routes

Overview1 Credits routes

Z.ai: GLM 5.2 routes

Overview33 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.

Questions

Which should I use, Mistral: Voxtral 4B TTS or Z.ai: GLM 5.2?

Z.ai: GLM 5.2 has more Credits provider routes. A published Credits price comparison is not available for both models. There is not enough recent probe data to compare speed.

Is Mistral: Voxtral 4B TTS or Z.ai: GLM 5.2 cheaper?

The current cheapest TrustedRouter route is selected route for Mistral: Voxtral 4B TTS and $2.2999/1M for Z.ai: GLM 5.2. The comparison uses current catalog prices and updates as provider pricing changes.

Is Mistral: Voxtral 4B TTS or Z.ai: GLM 5.2 faster?

Current measured p50 time to first token is not enough data for Mistral: Voxtral 4B TTS and 658 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 Mistral: Voxtral 4B TTS and Z.ai: GLM 5.2 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.