FLUX.2 [max] vs Z.ai: GLM 5.1
FLUX.2 [max] vs Z.ai: GLM 5.1: compare current API pricing, context, provider routes, privacy, p50 latency, and OpenAI-compatible access.
Practical read
Monthly evidenceZ.ai: GLM 5.1 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.
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.
black-forest-labs/flux-2-maxz-ai/glm-5.1
FLUX.2 [max] routes
- Overview1 Credits routes
Z.ai: GLM 5.1 routes
- Overview12 Credits routes
- PricingInput, cached input, and output rates
- BenchmarksTrustedRouter and external sources
- ProvidersAll serving providers
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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, FLUX.2 [max] or Z.ai: GLM 5.1?
Z.ai: GLM 5.1 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 FLUX.2 [max] or Z.ai: GLM 5.1 cheaper?
The current cheapest TrustedRouter route is selected route for FLUX.2 [max] and $4.2833/1M for Z.ai: GLM 5.1. The comparison uses current catalog prices and updates as provider pricing changes.
Is FLUX.2 [max] or Z.ai: GLM 5.1 faster?
Current measured p50 time to first token is not enough data for FLUX.2 [max] and 1321 ms for Z.ai: GLM 5.1. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.
Can I test FLUX.2 [max] and Z.ai: GLM 5.1 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.