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Update LightRAG setup: Kimi 2.5 entity extraction & Cerebras+Qwen3 options#1

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Update LightRAG setup: Kimi 2.5 entity extraction & Cerebras+Qwen3 options#1
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devin/1776314159-lightrag-kimi-cerebras-update

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@OnlyTerp

@OnlyTerp OnlyTerp commented Apr 16, 2026

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Summary

Replaces the single generic .env example in the LightRAG setup section with three clearly labeled configuration options:

  • Option A — Kimi 2.5 + Fireworks (recommended for quality)
  • Option B — Cerebras + Qwen 3 (recommended for speed)
  • Option C — Free local Ollama setup

Also adds LLM_BINDING_HOST for custom API endpoints, an "API keys" quick-reference with signup links, the entity extraction model comparison table (was missing from part3-lightrag-setup.md), and stronger recommendation copy. Updated both README.md and part3-lightrag-setup.md to stay in sync.

Updates since last revision

  • Rebased on main to resolve merge conflicts with the security-hardening commit (placeholder API keys now use <your-xxx-api-key> format throughout)
  • Preserved the chmod 600 security tip from main in README.md

Review & Testing Checklist for Human

  • Verify LLM_BINDING_HOST is a real LightRAG env var. This was not present in the original examples. If LightRAG uses a different name (e.g. LLM_BINDING_BASE_URL, LLM_BASE_URL), the Kimi and Cerebras examples will silently fail to connect. This is the highest-risk item.
  • Verify API endpoint URLshttps://api.moonshot.cn/v1 (Kimi) and https://api.cerebras.ai/v1 (Cerebras) should be confirmed against current provider docs.
  • Verify model name stringskimi-2.5, qwen-3-32b, qwen3:32b (Ollama variant) — confirm these match what each provider actually expects.
  • Spot-check that both files are consistent — the entity extraction table, .env options, and recommendation text should be identical between README.md (Part 3 inline section) and part3-lightrag-setup.md. Note: part3-lightrag-setup.md is currently missing the chmod 600 security tip that README.md has — minor inconsistency.

Notes

  • The README.md already had partial Kimi 2.5 references and the model comparison table; the main changes there are restructuring the .env into labeled options, adding LLM_BINDING_HOST, and adding the API key links.
  • part3-lightrag-setup.md had larger changes — it was still referencing gpt-4.1-mini as the default and lacked the model comparison table entirely.
  • The troubleshooting "Slow ingestion" section in part3-lightrag-setup.md was also updated to recommend Cerebras + Qwen 3 / Kimi 2.5 instead of the old GPT-4.1-mini / Claude Haiku suggestion.
  • No code changes — documentation only.

Link to Devin session: https://app.devin.ai/sessions/be57baa807b64c75b7f3cfe3596230d8
Requested by: @OnlyTerp


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…lti-option .env

- Replace single .env example with three clear options:
  Option A: Kimi 2.5 + Fireworks (recommended)
  Option B: Cerebras + Qwen 3 (fastest ingestion)
  Option C: Free local Ollama setup
- Add LLM_BINDING_HOST config for Kimi and Cerebras endpoints
- Add API key signup links for Moonshot, Cerebras, and Fireworks
- Update prerequisites to recommend Kimi 2.5 and Cerebras+Qwen3
- Add entity extraction model comparison table to part3-lightrag-setup.md
- Strengthen recommendation text with specific use-case guidance
- Update troubleshooting slow ingestion to reference new models
- Keep both README.md and part3-lightrag-setup.md in sync

Co-Authored-By: Rob <onerobby@gmail.com>
@devin-ai-integration devin-ai-integration Bot force-pushed the devin/1776314159-lightrag-kimi-cerebras-update branch from 35e9a9f to e0244cb Compare April 16, 2026 19:46

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Devin Review found 1 potential issue.

View 2 additional findings in Devin Review.

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Comment thread part3-lightrag-setup.md
Comment on lines +115 to +118
> **Where to get API keys:**
> - **Kimi / Moonshot:** [platform.moonshot.cn](https://platform.moonshot.cn) — sign up, create an API key
> - **Cerebras:** [cloud.cerebras.ai](https://cloud.cerebras.ai) — free tier available, very generous limits
> - **Fireworks:** [fireworks.ai](https://fireworks.ai) — sign up for an API key

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🟡 Security tip for chmod 600 on .env file dropped from part3-lightrag-setup.md

The old part3-lightrag-setup.md (line 87) included an important security tip: > **Security tip:** Set restrictive permissions on this file: \chmod 600 ~/.hermes/lightrag/.env`. This was removed during the rewrite but was kept in README.md:674. Since the .env` file contains API keys, users reading only the standalone part3 guide will miss this security guidance, potentially leaving their API keys world-readable.

Suggested change
> **Where to get API keys:**
> - **Kimi / Moonshot:** [platform.moonshot.cn](https://platform.moonshot.cn) — sign up, create an API key
> - **Cerebras:** [cloud.cerebras.ai](https://cloud.cerebras.ai) — free tier available, very generous limits
> - **Fireworks:** [fireworks.ai](https://fireworks.ai) — sign up for an API key
> **Security tip:** Set restrictive permissions on this file: `chmod 600 ~/.hermes/lightrag/.env`
> **Where to get API keys:**
> - **Kimi / Moonshot:** [platform.moonshot.cn](https://platform.moonshot.cn) — sign up, create an API key
> - **Cerebras:** [cloud.cerebras.ai](https://cloud.cerebras.ai) — free tier available, very generous limits
> - **Fireworks:** [fireworks.ai](https://fireworks.ai) — sign up for an API key
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OnlyTerp added a commit that referenced this pull request May 27, 2026
Replaces #1 with current LightRAG examples: Kimi K2.6 via https://api.moonshot.ai/v1 for quality, Cerebras gpt-oss-120b for speed instead of deprecated qwen-3-32b, Fireworks Qwen3-Embedding-8B for high-quality embeddings, and local Ollama for free/private setup. Keeps README.md and part3-lightrag-setup.md in sync and preserves real LightRAG LLM_BINDING_HOST / EMBEDDING_BINDING_HOST env vars. Supersedes #1.
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Handled this as a corrected replacement in #17. The structure from this PR (multiple LightRAG setup options) was good, but the concrete examples had gone stale:

Closing this in favor of #17.

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Superseded by #17, which lands the same LightRAG multi-option setup idea with current Kimi/Cerebras model IDs and endpoints.

@OnlyTerp OnlyTerp closed this May 27, 2026
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Devin is archived and cannot be woken up. Please unarchive Devin if you want to continue using it.

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Clean note after close: #17 superseded this PR with the same LightRAG multi-option setup idea, but corrected the stale concrete examples.

  • Kimi uses kimi-k2.6 and the international https://api.moonshot.ai/v1 endpoint.
  • Cerebras uses current production gpt-oss-120b instead of deprecated qwen-3-32b.
  • The docs keep real LightRAG env vars: LLM_BINDING_HOST and EMBEDDING_BINDING_HOST.
  • Both part3-lightrag-setup.md and README.md are synced in docs: refresh LightRAG model setup examples #17.

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