compare
Agenta vs Arize Phoenix
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Agenta | Arize Phoenix |
|---|---|---|
| Language | TypeScript | Python |
| Licence | Other | Other |
| Stars | 4.8k | 12k |
| Latest | v0.122.1 | arize-phoenix-v20.19.0 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 1 day between releases | about 1 day between releases |
| Active contributors | 8+ commit authors on the default branch in the last 90 days | 55+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace LangSmith. Alternatives to LangSmith →
Full replacementAgentaPrompt management, evaluations and tracing in one platform.
Full replacementArize PhoenixTracing over OpenTelemetry, datasets, experiments and evaluations.
Agenta
- v0.122.12026-10-06[docs] Update API reference docs by @github-actions[bot] in
- v0.122.02026-10-05feat(api): managed tool actions with mock providers
- v0.121.82026-10-05[feat] Reply to a selected part of an agent reply or file
- v0.121.72026-10-02docs(changelog): Configure permissions for your agent
- v0.121.62026-09-30[feat] Add Claude Sonnet 5.5 to the Claude, Pi, prompt, and pricing catalogs
Arize Phoenix
- arize-phoenix-v20.19.02026-10-01arize-phoenix: v20.19.0
- @arizeai/phoenix-mcp@4.3.152026-09-30Updated dependencies [f8ae2fc]
- @arizeai/phoenix-cli@1.18.72026-09-30Updated dependencies [f8ae2fc]
- @arizeai/phoenix-client@7.16.02026-09-30f8ae2fc: Add listProjectAnnotationConfigs, assignProjectAnnotationConfig, unassignProjectAnnotationConfig, and setProje…
- arize-phoenix-v20.18.02026-09-30arize-phoenix: v20.18.0
Agenta
✓ signed The latest release, v0.122.1, carries a signature GitHub verified.
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Arize Phoenix
✓ signed The latest release, arize-phoenix-v20.19.0, carries a signature GitHub verified.
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