Comparison
langcorn vs vllm
Verdict
Pick langcorn if langCorn is a tool that serves LangChain LLM apps and agents with FastApi; pick vllm if vLLM is a Python-based engine for efficient inference and serving of large language models, offering high throughput and memory efficiency.
Markdown twin · langcorn alternatives · vllm alternatives
GraphCanon updated Sep 20, 2026
22views this month
Trust & integrity
| Signal | langcorn | vllm |
|---|---|---|
| Maintenance | Dormant (796d since push) As of Sep 20, 2026 · github_public_v1 | Very active (0d since push) As of Sep 18, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 20, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 |
| OSV dependency advisories | Published findings As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Sep 18, 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
- langcorn
- Serving LangChain LLM apps and agents automagically with FastApi
- vllm
- A high-throughput and memory-efficient inference and serving engine for LLMs
Stars
- langcorn
- 938
- vllm
- 92k
Forks
- langcorn
- 69
- vllm
- 22k
Open issues
- langcorn
- 21
- vllm
- 8.1k
Language
- langcorn
- Python
- vllm
- Python
Adopt for
- langcorn
- LangCorn is a tool that serves LangChain LLM apps and agents with FastApi.
- vllm
- vLLM is a Python-based engine for efficient inference and serving of large language models, offering high throughput and memory efficiency.
Persona
- langcorn
- -
- vllm
- -
Runtime
- langcorn
- -
- vllm
- -
License
- langcorn
- MIT
- vllm
- vLLM is licensed under the Apache-2.0 license, allowing for broad use in both open-source and commercial projects.
Last pushed
- langcorn
- Jul 15, 2024
- vllm
- Sep 18, 2026
Categories
- langcorn
- Inference & Serving
- vllm
- Inference & Serving
Trust and health
Maintenance
- langcorn
- Dormant (18%)
- vllm
- Very active (96%)
Days since push
- langcorn
- 796d
- vllm
- 0d
Open issues (now)
- langcorn
- 21
- vllm
- 8.1k
Stars delta
- langcorn
- 0 (30d)
- vllm
- +4.2k (30d)
Open issues delta
- langcorn
- 0 (30d)
- vllm
- +1872 (30d)
Owner type
- langcorn
- User
- vllm
- Organization
OSV dependency advisories
- langcorn
- Published findings
- vllm
- No lockfile (source not queried)
Full report
- langcorn
- Trust report
- vllm
- Trust report
Typed relationship
Shared compatibility
- Python · langcorn: Python runtime · vllm: Python runtime
Choose langcorn if…
- License: langcorn is MIT, vllm is Apache-2.0.
- Both Langcorn and vllm provide solutions for serving large language models, aiming to make LLM deployment efficient and accessible.
- Tags unique to langcorn: api, fastapi, langchain, large-language-models.
- When you are deploying applications built with Large Language Models (LLMs) like OpenAI.
When NOT to use langcorn
- When you require a framework other than FastAPI for your deployment needs.
- If you are looking for broader support beyond LangChain-compatible projects.
- In cases where minimal integration with the current infrastructure is not acceptable, as LangCorn requires specific adaptation steps.
Choose vllm if…
- License: vllm is Apache-2.0, langcorn is MIT.
- Requirements: Min 8 GB RAM; Installation can be done via `uv pip install vllm` or building from source for development purposes..
- Both Langcorn and vllm provide solutions for serving large language models, aiming to make LLM deployment efficient and accessible.
- Tags unique to vllm: amd, blackwell, cuda, deepseek.
- When you need a high-throughput and memory-efficient inference engine for large language models, especially if you are working with a variety of hardware configurations including AMD, CUDA, and TPU.
When NOT to use vllm
- If your project strictly requires a specific competitor's ecosystem or features that are not covered by vLLM, such as specialized model serving capabilities not supported by vLLM.
- When the project's hardware setup is incompatible with the supported hardware configurations of vLLM, such as certain non-supported GPU models or configurations.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (msoedov/langcorn) · observed Sep 20, 2026
- GitHub forks (msoedov/langcorn) · observed Sep 20, 2026
- Last push (msoedov/langcorn) · observed Jul 15, 2024
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 15, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (vllm-project/vllm) · observed Sep 20, 2026
- GitHub forks (vllm-project/vllm) · observed Sep 20, 2026
- Last push (vllm-project/vllm) · observed Sep 18, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
GitHub stars on cards: langcorn 938 · vllm 92k (synced Sep 20, 2026).
Common questions
- What is the difference between langcorn and vllm?
- langcorn: Serving LangChain LLM apps and agents automagically with FastApi. vllm: A high-throughput and memory-efficient inference and serving engine for LLMs. See the comparison table for live GitHub stats and shared categories.
- When should I choose langcorn over vllm?
- Choose langcorn over vllm when License: langcorn is MIT, vllm is Apache-2.0; Both Langcorn and vllm provide solutions for serving large language models, aiming to make LLM deployment efficient and accessible; Tags unique to langcorn: api, fastapi, langchain, large-language-models; When you are deploying applications built with Large Language Models (LLMs) like OpenAI.
- When should I choose vllm over langcorn?
- Choose vllm over langcorn when License: vllm is Apache-2.0, langcorn is MIT; Requirements: Min 8 GB RAM; Installation can be done via
uv pip install vllmor building from source for development purposes.; Both Langcorn and vllm provide solutions for serving large language models, aiming to make LLM deployment efficient and accessible; Tags unique to vllm: amd, blackwell, cuda, deepseek; When you need a high-throughput and memory-efficient inference engine for large language models, especially if you are working with a variety of hardware configurations including AMD, CUDA, and TPU. - When should I avoid langcorn?
- When you require a framework other than FastAPI for your deployment needs. If you are looking for broader support beyond LangChain-compatible projects. In cases where minimal integration with the current infrastructure is not acceptable, as LangCorn requires specific adaptation steps.
- When should I avoid vllm?
- If your project strictly requires a specific competitor's ecosystem or features that are not covered by vLLM, such as specialized model serving capabilities not supported by vLLM. When the project's hardware setup is incompatible with the supported hardware configurations of vLLM, such as certain non-supported GPU models or configurations.
- Is langcorn or vllm more popular on GitHub?
- vllm has more GitHub stars (92,075 vs 938). Stars measure visibility, not whether either tool fits your constraints.
- Are langcorn and vllm open source?
- Yes - both are open-source projects on GitHub (langcorn: MIT, vllm: Apache-2.0).
- Where can I find alternatives to langcorn or vllm?
- GraphCanon lists graph-backed alternatives at langcorn alternatives and vllm alternatives (langcorn markdown twin, vllm 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, langcorn or vllm?
- langcorn: Dormant. vllm: 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 langcorn and vllm?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: langcorn trust report; vllm trust report.