Fall back without changing your app contract You route across models by capability, health, latency, price, or application policy. A fallback preserves the typed contract and remains observable. python academy academy/topics/routing-fallback website/content-src/academy/course.mjs academy Fall back without changing your app contract
ax
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Unit 11 · Ship AI systems you can operate

Fall back without changing your app contract

You route across models by capability, health, latency, price, or application policy. A fallback preserves the typed contract and remains observable.

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Unit example (nearest native match)

See the idea in context

from axllm import ax

program = ax('text:string -> label:string')
usage = program.get_usage()
Run itIn your own project
pip install axllm

from axllm import ai, ax

llm = ai('openai', api_key=os.environ['OPENAI_API_KEY'])
classify = ax('review:string -> sentiment:class "positive, negative, neutral"')

Set OPENAI_APIKEY in your environment before running provider-backed code.

In the ax repo

From a clone of the ax repo:

npm run example -- python src/examples/python/long-agents/smart-defaults-agent.py
Active practice

Show that you can use it

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