Pick DSPy if
python teams who will write signatures and a metric and already have a model API key.
Read the DSPy pageDSPy vs Haystack
Our take
Pick DSPy if python teams who will write signatures and a metric and already have a model API key. Pick Haystack if teams who will write Python pipelines (or Studio) and already have a model + store.
Best for
DSPy A maintainable LM program in a repo
Haystack A production retrieval or agent graph you own
Free plan
DSPy $0
Haystack $0 · (haystack-ai)
Lowest paid
DSPy Not published by the vendor
Haystack Not published by the vendor
Coding agent
DSPy
Haystack Agents
Runs where
DSPy Hosted
Haystack Hosted
Watch out
DSPy You bring the model bill
Haystack Studio is one user + 100 pipeline hours
Last checked
DSPy 2026-10-22 · github.com/stanfordnlp/dspy/blob
Haystack 2026-10-22 · deepset.ai/pricing
Which one, then?
Pick Haystack if
teams who will write Python pipelines (or Studio) and already have a model + store.
Read the Haystack page