Comparison
openinference vs ax
Verdict
Pick openinference if openInference is a tool focused on providing observability for AI systems using OpenTelemetry, designed to complement it by enabling tracing of AI applications. It is natively supported by Arize Phoenix and AX but can be; pick ax if ax is an agent-first toolset for managing observability and memory aimed at AI coding agents like Claude Code and.
Markdown twin · openinference alternatives · ax alternatives
GraphCanon updated Sep 20, 2026
11views this month
Trust & integrity
| Signal | openinference | ax |
|---|---|---|
| Maintenance | Very active (0d since push) As of Sep 20, 2026 · github_public_v1 | Very active (1d since push) As of Sep 10, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 | Not a fork · Personal account As of Sep 10, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- openinference
- OpenTelemetry Instrumentation for AI Observability
- ax
- Agent experience layer with observability and memory for AI coding agents.
Stars
- openinference
- 1.2k
- ax
- 107
Forks
- openinference
- 318
- ax
- 13
Open issues
- openinference
- 234
- ax
- 35
Language
- openinference
- Python
- ax
- TypeScript
Adopt for
- openinference
- OpenInference is a tool focused on providing observability for AI systems using OpenTelemetry, designed to complement it by enabling tracing of AI applications. It is natively supported by Arize Phoenix and AX but can be
- ax
- ax is an agent-first toolset for managing observability and memory aimed at AI coding agents like Claude Code and Codex, with a focus on local-first strong typing in TypeScript.
Persona
- openinference
- -
- ax
- -
Runtime
- openinference
- -
- ax
- -
License
- openinference
- Apache-2.0
- ax
- AGPL-3.0
Last pushed
- openinference
- Sep 19, 2026
- ax
- Sep 8, 2026
Categories
- openinference
- Evaluation & Observability
- ax
- AI Agents, Evaluation & Observability
Trust and health
Days since push
- openinference
- 0d
- ax
- 1d
Open issues (now)
- openinference
- 234
- ax
- 35
Stars delta
- openinference
- +66 (30d)
- ax
- +14 (30d)
Open issues delta
- openinference
- -4 (30d)
- ax
- +1 (30d)
Owner type
- openinference
- Organization
- ax
- User
Full report
- openinference
- Trust report
Choose openinference if…
- openinference is primarily Python; ax is TypeScript.
- License: openinference is Apache-2.0, ax is AGPL-3.0.
- Tags unique to openinference: aiops, llmops, openinference, telemetry.
- When you are working with AI applications that need detailed tracing capabilities alongside observability features provided by OpenTelemetry.
When NOT to use openinference
- When your AI applications do not require the specific tracing features supported by OpenInference and can operate effectively with standard OpenTelemetry capabilities alone.
- If you are looking for alternatives that offer more generic observability features without needing to integrate Arize-specific tools, as this might make OpenInference less beneficial.
Choose ax if…
- ax is primarily TypeScript; openinference is Python.
- License: ax is AGPL-3.0, openinference is Apache-2.0.
- Tags unique to ax: agent-memory, agent-observability, ai-agents, bun.
- Also covers AI Agents.
- For projects requiring detailed observability and memory management specific to AI-driven coding agents
When NOT to use ax
- Avoid if seeking a tool agnostic to AI-specific functionalities like those for Claude Code and Codex
- Not recommended when looking for solutions outside local-first approaches in TypeScript environment
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (Arize-ai/openinference) · observed Sep 20, 2026
- GitHub forks (Arize-ai/openinference) · observed Sep 20, 2026
- Last push (Arize-ai/openinference) · observed Sep 19, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 9, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (Necmttn/ax) · observed Sep 20, 2026
- GitHub forks (Necmttn/ax) · observed Sep 20, 2026
- Last push (Necmttn/ax) · observed Sep 8, 2026
- License file (AGPL-3.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: openinference 1.2k · ax 107 (synced Sep 20, 2026).
Common questions
- What is the difference between openinference and ax?
- openinference: OpenTelemetry Instrumentation for AI Observability. ax: Agent experience layer with observability and memory for AI coding agents.. See the comparison table for live GitHub stats and shared categories.
- When should I choose openinference over ax?
- Choose openinference over ax when openinference is primarily Python; ax is TypeScript; License: openinference is Apache-2.0, ax is AGPL-3.0; Tags unique to openinference: aiops, llmops, openinference, telemetry; When you are working with AI applications that need detailed tracing capabilities alongside observability features provided by OpenTelemetry.
- When should I choose ax over openinference?
- Choose ax over openinference when ax is primarily TypeScript; openinference is Python; License: ax is AGPL-3.0, openinference is Apache-2.0; Tags unique to ax: agent-memory, agent-observability, ai-agents, bun; Also covers AI Agents; For projects requiring detailed observability and memory management specific to AI-driven coding agents.
- When should I avoid openinference?
- When your AI applications do not require the specific tracing features supported by OpenInference and can operate effectively with standard OpenTelemetry capabilities alone. If you are looking for alternatives that offer more generic observability features without needing to integrate Arize-specific tools, as this might make OpenInference less beneficial.
- When should I avoid ax?
- Avoid if seeking a tool agnostic to AI-specific functionalities like those for Claude Code and Codex Not recommended when looking for solutions outside local-first approaches in TypeScript environment
- Is openinference or ax more popular on GitHub?
- openinference has more GitHub stars (1,225 vs 107). Stars measure visibility, not whether either tool fits your constraints.
- Are openinference and ax open source?
- Yes - both are open-source projects on GitHub (openinference: Apache-2.0, ax: AGPL-3.0).
- Where can I find alternatives to openinference or ax?
- GraphCanon lists graph-backed alternatives at openinference alternatives and ax alternatives (openinference markdown twin, ax markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, openinference or ax?
- openinference: Very active. ax: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for openinference and ax?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: openinference trust report; ax trust report.