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PyPI · #4142 most downloaded on PyPI
LLM Observability
Last release 26 days ago
08 Sep 2026
Ships fairly regularly
a new release about every 2 weeks
Most releases are documented
notes for 52 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
2 years old
75 releases · first in 2025
One column per month.
add MiniMax provider integration
phoenix.evals (#2421) (fbd4961)BedrockModel (#2425) (81a720c)server: GET /v1/model_providers no longer returns custom providers or a next_cursor , and built-in entries expose provider rather than kind + provider
next_cursor, and built-in entries expose provider rather than kind + provider_key. Custom providers move to GET /v1/custom_model_providers. The endpoint is unreleased, so no published client is affected.pxi: enable phoenix-gql mutations by default with approval in manual mode
server: add POST /traces/transfer
release arize-phoenix-client 3.1.0
client: replace google-generativeai formatter with google-genai
client: add name_contains filter to Python client projects.list() (#14132) (fa79dc0), closes #14034
ui: add annotation summary to project settings
add direct server agent endpoint
add playground repetitions tool
Nothing published for this version
add PXI playground model switching tool
agents: add /agents/{agent_id}/sessions/{session_id}/summary endpoint
api: add session notes endpoint
add trace note REST endpoint for Phoenix CLI
client: pass through trace_id to experiment evaluators
llm_classify (#2068) (3233d56)atif to trace trajectory conversion utility
evals: deprecate evals 1.0 docs
client: add span filter params to getSpans
v1/traces HTTP endpoint to handle ExportTraceServiceRequest (3c94dea)v1/traces HTTP endpoint to handle ExportTraceServiceRequest (#1968) (3c94dea)client: add server version gating with capability requirements
client: remove deprecated client.annotations module
client.annotations has been removed. Use client.spans instead.client.annotations module (#11983) (6203c31)llm_classify and llm_generate interfaces (#1974)llm_generate (#1965) (5999133)llm_classify and llm_generate interfaces (#1974) (9fd35a1)add GET endpoints for sessions REST API
This PR was generated with Release Please. See documentation.
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add parameter for deleting project after deleting experiment
## 1.29.0 (2026-02-13) ### Features * dataset evaluators (5f47820) * dataset evaluators
add timezone validation to log_spans_dataframe
add FaithfulnessEvaluator and deprecate HallucinationEvaluator
This PR was generated with Release Please. See documentation.
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use context.span_id column when DataFrame has integer index
update reasoning_effort options for openai
Add span note function to python client
This PR was generated with Release Please. See documentation.
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splits: Allow split assignment from dataset upload
add evaluation helpers to easily pull rag spans
## 1.24.0 (2025-11-19) ### Features * switch client to be Apache 2.0
## 1.23.0 (2025-11-12) ### Features * Experiment retries
resume experiment and evaluation
This PR was generated with Release Please. See documentation.
<!-- CURSOR_SUMMARY -->
client methods for adding trace and session annotations
This PR was generated with Release Please. See documentation.
<!-- CURSOR_SUMMARY -->
client: make sure printed url work for proxied urls
Experiments<->Evals 2.0 compatibility
experiments: make sure repetitions is a positive integer
missing version in deprecation docstring
paginate get experiment runs inside run_experiment
META).experiment task function backward compatibility for the example argument
add methods to log document annotations
ZAI).python phoenix-client delete span method
Remove reference to experiment evaluators in client docstrings
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Nothing published for this version
Nothing published for this version
Nothing published for this version
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