OpenInference
OpenTelemetry-based instrumentation that traces LLM and agent framework calls so any observability backend can show them.
✨ Try AgentScout's free AI image generator →Good for: building AI agents, building voice agents, evaluating agents, monitoring agents in production
Use cases
About OpenInference
OpenInference is listed in our evals & observability category and is aimed at builders. OpenTelemetry-based instrumentation that traces LLM and agent framework calls so any observability backend can show them. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-18.
OpenInference at a glance
- Category: Evals & observability
- Built for: Developers and teams building with AI agents
- Pricing: Open source (as the maker states it)
- Licence: Apache License 2.0 (OSI-approved open source)
- GitHub: Arize-ai/openinference · 1,268 stars (as of Oct 18, 2026)
- Official site: arize-ai.github.io/openinference
- Listed on AgentScout: Oct 18, 2026
OpenInference FAQ
What is OpenInference?
OpenTelemetry-based instrumentation that traces LLM and agent framework calls so any observability backend can show them.
How much does OpenInference cost?
OpenInference's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is OpenInference open source?
Yes. OpenInference's GitHub repository is published under the Apache License 2.0, according to the licence file in the repo.
Where can I find OpenInference's source code?
On GitHub at Arize-ai/openinference, which had 1,268 stars as of Oct 18, 2026.
What are alternatives to OpenInference?
Other evals & observability tools on AgentScout include MLflow, Opik, Arize Phoenix, SWE-bench, Kiln.
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
OpenInference ratings and reviews
OpenInference alternatives
Other evals & observability tools in our directory. See all evals & observability tools →
Pezzo
Cloud-native LLMOps platform for prompt design, versioning, delivery, observability and cost monitoring.
Latitude
Observability platform for AI agents that captures traces, groups failures into signals and verifies fixes against real traces.
Helicone
Open-source LLM observability and gateway.
Respan
Observability and evaluation platform for LLM apps and agents.
OpenLIT
Open-source platform to trace, evaluate and guard agents and LLM apps.
TruLens
Evaluation and tracking for LLM experiments and AI agents.
Popular searches with this tool
🏆 Ranked in: Best AI Agent Observability & Eval Tools
🧭 Task guides: Building AI agents: voice and phone agents
💲 Estimate API cost: compare per-request and monthly costs for GPT, Claude, Gemini and Grok models.
Badge for makers
Built OpenInference? Add this badge to your README or site. It links back to this page. About badges
