Comparison
openlm vs langstream
Verdict
Pick openlm if openLM is a flexible Python library designed to interface with various Language Model frameworks similarly to the OpenAI API; pick langstream if langStream is a Python-based tool for building robust Language Model (LLM) applications, emphasizing modularity and composability.
Markdown twin · openlm alternatives · langstream alternatives
GraphCanon updated 1w
vs
Trust & integrity
| Signal | openlm | langstream |
|---|---|---|
| Maintenance | Dormant (1184d since push) As of 1w · github_public_v1 | Dormant (946d since push) As of 2w · github_public_v1 |
| Provenance | Not a fork · Personal account As of 1w · github_public_v1 | Not a fork · Personal account As of 2w · github_public_v1 |
| OSV dependency advisories | Published findings As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · 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
- openlm
- OpenAI-compatible Python client for calling any LLM
- langstream
- Build robust LLM applications with true composability
Stars
- openlm
- 368
- langstream
- 417
Forks
- openlm
- 22
- langstream
- 28
Open issues
- openlm
- 1
- langstream
- 3
Language
- openlm
- Python
- langstream
- Python
Adopt for
- openlm
- OpenLM is a flexible Python library designed to interface with various Language Model frameworks similarly to the OpenAI API.
- langstream
- LangStream is a Python-based tool for building robust Language Model (LLM) applications, emphasizing modularity and composability.
Persona
- openlm
- -
- langstream
- -
Runtime
- openlm
- -
- langstream
- -
License
- openlm
- MIT License
- langstream
- MIT
Last pushed
- openlm
- May 19, 2023
- langstream
- Jan 3, 2024
Categories
- openlm
- LLM Frameworks
- langstream
- Developer Tools, LLM Frameworks
Trust and health
Days since push
- openlm
- 1184d
- langstream
- 946d
Open issues (now)
- openlm
- 1
- langstream
- 3
Stars delta
- openlm
- -1 (30d)
- langstream
- Unknown
Open issues delta
- openlm
- 0 (30d)
- langstream
- Unknown
OSV dependency advisories
- openlm
- Published findings
- langstream
- No lockfile (source not queried)
Full report
- openlm
- Trust report
- langstream
- Trust report
Shared compatibility
- Python · openlm: Python runtime · langstream: Python runtime
Choose openlm if…
- Requirements: Installation is as simple as using pip to install the openlm package..
- Tags unique to openlm: cohere, huggingface, llm, openai.
- Use when you want to seamlessly integrate different LLM frameworks, like Hugging Face or Cohere, under a uniform interface similar to OpenAI’s.
When NOT to use openlm
- Avoid when you require maximum performance optimization specific to one LLM framework, as using an intermediary library like OpenLM might introduce additional overhead.
- Not suitable if you are strictly working with models that do not have Python support or don't fit within the frameworks supported by OpenLM.
Choose langstream if…
- Tags unique to langstream: composability, modular development, python.
- Also covers Developer Tools.
- LangStream is a Python-based tool for building robust Language Model (LLM) applications, emphasizing modularity and composability.
When NOT to use langstream
- Last GitHub push was 963 days ago (dormant maintenance, Jan 3, 2024). Validate activity before betting a new project on langstream.
- Developer Tools: A gateway is overkill when you're pinned to a single provider and model.
- LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (r2d4/openlm) · observed Aug 15, 2026
- GitHub forks (r2d4/openlm) · observed Aug 15, 2026
- Last push (r2d4/openlm) · observed May 19, 2023
- License file (MIT) · observed Aug 15, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (rogeriochaves/langstream) · observed Aug 7, 2026
- GitHub forks (rogeriochaves/langstream) · observed Aug 7, 2026
- Last push (rogeriochaves/langstream) · observed Jan 3, 2024
- License file (MIT) · observed Aug 7, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: openlm 368 · langstream 417 (synced Aug 15, 2026).
Common questions
- What is the difference between openlm and langstream?
- openlm: OpenAI-compatible Python client for calling any LLM. langstream: Build robust LLM applications with true composability. See the comparison table for live GitHub stats and shared categories.
- When should I choose openlm over langstream?
- Choose openlm over langstream when Requirements: Installation is as simple as using pip to install the openlm package.; Tags unique to openlm: cohere, huggingface, llm, openai; Use when you want to seamlessly integrate different LLM frameworks, like Hugging Face or Cohere, under a uniform interface similar to OpenAI’s.
- When should I choose langstream over openlm?
- Choose langstream over openlm when Tags unique to langstream: composability, modular development, python; Also covers Developer Tools; LangStream is a Python-based tool for building robust Language Model (LLM) applications, emphasizing modularity and composability.
- When should I avoid openlm?
- Avoid when you require maximum performance optimization specific to one LLM framework, as using an intermediary library like OpenLM might introduce additional overhead. Not suitable if you are strictly working with models that do not have Python support or don't fit within the frameworks supported by OpenLM.
- When should I avoid langstream?
- Last GitHub push was 963 days ago (dormant maintenance, Jan 3, 2024). Validate activity before betting a new project on langstream. Developer Tools: A gateway is overkill when you're pinned to a single provider and model. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves.
- Is openlm or langstream more popular on GitHub?
- langstream has more GitHub stars (417 vs 368). Stars measure visibility, not whether either tool fits your constraints.
- Are openlm and langstream open source?
- Yes - both are open-source projects on GitHub (openlm: MIT, langstream: MIT).
- Where can I find alternatives to openlm or langstream?
- GraphCanon lists graph-backed alternatives at openlm alternatives and langstream alternatives (openlm markdown twin, langstream 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, openlm or langstream?
- openlm: Dormant. langstream: Dormant. 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 openlm and langstream?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: openlm trust report; langstream trust report.