# How does TripoSG's MIT declaration sit alongside the Tencent agreements and the BRIA licence that its own files and NOTICE point to, and where do the texts conflict?

- id: art_01M5MBZK66Y9657Z2V86JMYEJP
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T09, T15, T20 · tags: none
- updated: 2026-10-23T12:32:42.685Z
- url: https://veyrul.com/articles/art_01M5MBZK66Y9657Z2V86JMYEJP

At commit fc5c40990181e2a756c4e0b1c2f4d6b5202faf8c TripoSG declares MIT at the root while one file states that its use is subject to the Tencent Hunyuan Community License Agreement (with the agreement text embedded), a second licence file in triposg/ is the FlashVDM agreement, and NOTICE adds BRIA and Tencent code. The Tencent template lets modifiers add other licence terms 'except' where its sections 3 and 5 apply, and both agreements restrict territory and other-model improvement; whether and how those survive in an MIT-labelled release is not stated by any of the texts. Separately, FlashVDM's own source files name a Non-Commercial agreement while its LICENSE and NOTICE name the Community agreement, and RMBG-1.4's licence URL is dead. No conclusion on legal effect is drawn.

At commit fc5c40990181e2a756c4e0b1c2f4d6b5202faf8c TripoSG declares MIT at the root while one file states that its use is subject to the Tencent Hunyuan Community License Agreement (with the agreement text embedded), a second licence file in triposg/ is the FlashVDM agreement, and NOTICE adds BRIA and Tencent code. The Tencent template lets modifiers add other licence terms 'except' where its sections 3 and 5 apply, and both agreements restrict territory and other-model improvement; whether and how those survive in an MIT-labelled release is not stated by any of the texts. Separately, FlashVDM's own source files name a Non-Commercial agreement while its LICENSE and NOTICE name the Community agreement, and RMBG-1.4's licence URL is dead. No conclusion on legal effect is drawn.

Curator qualifications: The layering summary duplicates W18-04/05 (C3R-0180, C3R-0182) and is consistent with them. The new upstream inconsistency verifies: the FlashVDM decoder files name a 'NON-COMMERCIAL' agreement for 'Hunyuan 3D' on line 1, while LICENSE/NOTICE name the FlashVDM Community agreement. The THL A29 definition difference also verifies. Precision: each FlashVDM decoder file names both agreements. Line 1 says 'Hunyuan 3D is licensed under the TENCENT HUNYUAN NON-COMMERCIAL LICENSE AGREEMENT', and line 13 refers to works made available 'in accordance with TENCENT HUNYUAN COMMUNITY LICENSE AGREEMENT'. The inconsistency is within the header as well as between header and LICENSE. HunyuanDiT 20/455 code-line overlap not re-measured.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/VAST-AI-Research/TripoSG/tree/fc5c40990181e2a756c4e0b1c2f4d6b5202faf8c",
      "note": "FlashVDM d16f5b99 attention_processors.py L1, L13 (producer work copy); FlashVDM d16f5b99 volume_decoders.py L1, L13 (curator raw GET, byte-identical to work copy); FlashVDM NOTICE L7, L9; FlashVDM LICENSE; TripoSG triposg/LICENSE (curator raw GET)"
    },
    {
      "url": "https://github.com/Tencent/FlashVDM/tree/d16f5b99b5185170e4cf14d5568f2264ba5894d0",
      "note": "FlashVDM d16f5b99 attention_processors.py L1, L13 (producer work copy); FlashVDM d16f5b99 volume_decoders.py L1, L13 (curator raw GET, byte-identical to work copy); FlashVDM NOTICE L7, L9; FlashVDM LICENSE; TripoSG triposg/LICENSE (curator raw GET)"
    },
    {
      "url": "https://github.com/Tencent/HunyuanDiT/tree/bf37693476a86e281006173ddd364debbb3c3624",
      "note": "FlashVDM d16f5b99 attention_processors.py L1, L13 (producer work copy); FlashVDM d16f5b99 volume_decoders.py L1, L13 (curator raw GET, byte-identical to work copy); FlashVDM NOTICE L7, L9; FlashVDM LICENSE; TripoSG triposg/LICENSE (curator raw GET)"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] At commit fc5c40990181e2a756c4e0b1c2f4d6b5202faf8c TripoSG declares MIT at the root while one file states that its use is subject to the Tencent Hunyuan Community License Agreement (with the agreement text embedded), a second licence file in triposg/ is the FlashVDM agreement, and NOTICE adds BRIA and Tencent code. The Tencent template lets modifiers add other licence terms 'except' where its sections 3 and 5 apply, and both agreements restrict territory and other-model improvement; whether and how those survive in an MIT-labelled release is not stated by any of the texts. Separately, FlashVDM's own source files name a Non-Commercial agreement while its LICENSE and NOTICE name the Community agreement, and RMBG-1.4's licence URL is dead. No conclusion on legal effect is drawn. · locator: FlashVDM d16f5b99 attention_processors.py L1, L13 (producer work copy); FlashVDM d16f5b99 volume_decoders.py L1, L13 (curator raw GET, byte-identical to work copy); FlashVDM NOTICE L7, L9; FlashVDM LICENSE; TripoSG triposg/LICENSE (curator raw GET) · source: https://github.com/VAST-AI-Research/TripoSG/tree/fc5c40990181e2a756c4e0b1c2f4d6b5202faf8c

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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