# Text to 3D Generator

> A text to 3D generator creates a 3D model from a written description. In Kenerate AI's 3D Studio you describe one object (its shape, materials and colours) and pick one of nine engines; most models arrive in 1–5 minutes (longer on GPT-6 Astra) as GLB, with FBX, OBJ, USDZ or STL on some engines.

URL: https://kenerateai.com/text-to-3d-generator
Publisher: Kenerate AI (https://kenerateai.com)
Last updated: 2026-10-01

## Key facts
- Prompt length: 200 (Hunyuan Rapid) · 600 (Meshy) · 1,000 (Rodin) · 1,024 (Tripo) · 4,000 (GPT-6 Astra) characters
- Engines: Tripo H3.1 (default) · Meshy 7.1, 7, 6 · Tripo P2 · Rodin 2.5, 2 · Hunyuan 3D 3.1 Rapid · GPT-6 Astra
- Output: GLB on every engine; FBX, OBJ, USDZ, STL on some
- Typical time: About 1–5 minutes; GPT-6 Astra longer
- Styles: Realistic, stylised, low-poly (Meshy), untextured draft (Hunyuan)
- Access: paid plans and credit packs
- Engine Meshy 7.1 (Meshy): inputs Text/Photo/Multi-view; files GLB, FBX, OBJ, USDZ; typical about 3–4 min; Production assets with the finest Meshy geometry (2K / 4K), smart topology, rigging and animation.
- Engine Meshy 7 (Meshy): inputs Text/Photo/Multi-view; files GLB, FBX, OBJ, USDZ; typical about 3–4 min; Detailed game and product assets, with an Ultra detail switch, low-poly mode and auto-rigging.
- Engine Meshy 6 (Meshy): inputs Text/Photo; files GLB, FBX, OBJ, USDZ; typical about 3–4 min; Reliable textured meshes with a polygon budget you control — the engine 3D Studio started on.
- Engine Tripo P2 (Tripo): inputs Text/Photo; files GLB, FBX; typical about 3–4 min; Crisp, game-ready meshes with pro texture tiers up to Extreme and clean quad remeshing.
- Engine Tripo H3.1 (Tripo): inputs Text/Photo/Multi-view; files GLB; typical about 4–5 min; High-quality meshes, with detailed geometry and a four-view mode for exact shapes.
- Engine GPT-6 Astra (OpenAI): inputs Text/Photo/Multi-view; files GLB; typical about 5–6 min; OpenAI's general GPT-6 Astra model run as a 3D job — follows long, detailed briefs and up to 10 reference photos, returns a GLB with PBR textures at real-world size. The slowest engine.
- Engine Rodin 2.5 (Hyper3D): inputs Text/Photo/Multi-view; files GLB, FBX, OBJ, USDZ, STL; typical about 2–3 min; Studio-grade meshes from 2K to 500K faces, quad or triangle, with a HighPack for 4K textures.
- Engine Rodin 2 (Hyper3D): inputs Text/Photo/Multi-view; files GLB, FBX, OBJ, USDZ, STL; typical about 2–3 min; Clean, detailed meshes — the first photo drives the materials.
- Engine Hunyuan 3D 3.1 Rapid (Tencent): inputs Text/Photo; files GLB; typical about 1 min; The fastest geometry — an untextured (clay) GLB for quick blockouts, drafts and ideas.

## Steps
1. Pick Text to 3D — In the 3D Studio, choose Text to 3D.
2. Write one object — Name the object, then shape, material, colours and style.
3. Choose an engine — Tripo H3.1 by default; others for their strengths.
4. Generate and refine — Inspect it, adjust the prompt or engine, and download.

## In depth

### Prompts describe objects, not pictures
Image prompts are about composition and light; 3D prompts are about the thing itself. Describe parts, proportions and materials. Lighting is added later by whatever displays the model.

### Why engines disagree
Each engine was trained differently, so the same words produce different proportions, levels of detail and texture styles. When a result is close but not right, changing engine often helps more than rewording.

### From text to a printable object
For printing, prefer chunky forms without thin floating parts and convert the GLB to STL or 3MF in millimetres. Walls under about 0.9 mm are risky on a 0.4 mm nozzle [11].

References:
[1] Wikipedia — STL (file format): https://en.wikipedia.org/wiki/STL_(file_format)
[2] Wikipedia — Wavefront .obj file: https://en.wikipedia.org/wiki/Wavefront_.obj_file
[3] Wikipedia — FBX: https://en.wikipedia.org/wiki/FBX
[4] Khronos Group — glTF: https://www.khronos.org/gltf/
[5] 3MF Consortium — 3MF specification: https://3mf.io/specification/
[6] Wikipedia — Universal Scene Description (USD / USDZ): https://en.wikipedia.org/wiki/Universal_Scene_Description
[7] Wikipedia — PLY (file format): https://en.wikipedia.org/wiki/PLY_(file_format)
[8] Khronos Group — glTF 2.0 specification: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html
[9] Apple — AR Quick Look: https://developer.apple.com/augmented-reality/quick-look/
[10] three.js — documentation: https://threejs.org/docs/
[11] Prusa Knowledge Base — Modeling with 3D printing in mind: https://help.prusa3d.com/article/modeling-with-3d-printing-in-mind_164135
[12] Prusa Blog — lithophanes and filament transparency: https://blog.prusa3d.com/lets-play-with-filament-transparency-how-to-make-amazing-lifelike-color-photos-with-just-a-simple-color-change_104338/
[13] Polymers (2024) 16(20):2862 — FFF parameters and translucency of PLA: https://doi.org/10.3390/polym16202862
[14] Wikipedia — Lithophane: https://en.wikipedia.org/wiki/Lithophane
[15] W3C — CSS Values and Units Level 3 (absolute lengths): https://www.w3.org/TR/css-values-3/
[16] Adobe Substance 3D — OpenGL vs DirectX normal maps: https://experienceleague.adobe.com/en/docs/substance-3d/bakers/common-questions/what-is-the-difference-between-the-opengl-and-directx-normal-format
[17] Blender Manual — Normal Map node: https://docs.blender.org/manual/en/latest/render/shader_nodes/displacement/normal_map.html
[18] Wikipedia — Normal mapping: https://en.wikipedia.org/wiki/Normal_mapping
[19] SIL Open Font License: https://openfontlicense.org/
[20] Meshy Blog — Meshy 7.1 launch (10 Sep 2026): https://www.meshy.ai/blog/meshy-7-1-launch
[21] Meshy Blog — Meshy 7 and image-to-3D geometry alignment: https://www.meshy.ai/blog/meshy-7-image-to-3d-geometry-alignment
[22] Meshy Help — Meshy 7 vs Meshy 6 vs Meshy 6 Lite: https://help.meshy.ai/en/articles/15697060-meshy-7-vs-meshy-6-vs-meshy-6-lite-which-ai-model-should-you-use
[23] Tripo Developer Docs — Tripo H3.1 (v3.1-20260211): https://developers.tripo3d.ai/en/models/v3-1
[24] VoxelMatters — Tripo AI launches P2.0 with native quad meshes (Sep 2026): https://www.voxelmatters.com/tripo-ai-launches-p2-0-model-to-generate-native-quad-meshes-for-production-pipelines/
[25] Hyper3D — Rodin Gen-2.5 launch press release (May 2026): https://pressadvantage.com/story/94732-hyper3d-launches-rodin-gen-2-5-bringing-sculpt-level-detail-and-production-control-to-ai-3d-generati
[26] arXiv — BANG: Dividing 3D Assets via Generative Exploded Dynamics (SIGGRAPH 2025): https://arxiv.org/abs/2507.21493
[27] befores & afters — Deemos launches Rodin Gen-2 (Oct 2025): https://beforesandafters.com/2025/10/02/deemos-launches-rodin-gen-2-a-groundbreaking-generative-ai-for-intuitive-3d-creation/
[28] GitHub — Tencent Hunyuan3D 2.1 (open weights): https://github.com/Tencent-Hunyuan/Hunyuan3D-2.1
[29] Hugging Face — Tencent Hunyuan 3D 2.1 Community License: https://huggingface.co/tencent/Hunyuan3D-2.1/blob/main/LICENSE
[30] Tencent Cloud — Hunyuan 3D product changelog: https://cloud.tencent.com/document/product/1804/120694
[31] CNBC — OpenAI rolls out GPT-6 Astra (3 Sep 2026): https://www.cnbc.com/2026/09/03/open-ai-astra-gpt-6-cyber.html
[32] AWS Bedrock — OpenAI GPT-6 Astra model card: https://docs.aws.amazon.com/bedrock/latest/userguide/model-card-openai-gpt-6-astra.html
[33] VoxelMatters — GPT-6 Astra can turn photos into 3D models: https://www.voxelmatters.com/gpt-6-astra-can-turn-photos-into-3d-models-and-playable-environments/
[34] WaveSpeedAI — GPT-6 Astra image-to-3D endpoint: https://wavespeed.ai/models/openai/gpt-6-astra/image-to-3d
[35] WaveSpeedAI — Hunyuan 3D 3.1 image-to-3D Rapid endpoint: https://wavespeed.ai/models/wavespeed-ai/hunyuan-3d-v3.1/image-to-3d-rapid

## FAQ
Q: What is text to 3D?
A: AI that creates a 3D model from a written description, usually with textures, as a file like GLB or FBX.

Q: What's the best text-to-3D engine?
A: Tripo H3.1 is a strong default; Meshy 7.1 for production assets and rigging; Rodin 2.5 for dense detail and STL; GPT-6 Astra for long, specific briefs; Hunyuan 3D Rapid for quick drafts.

Q: How long can my prompt be?
A: Up to 200 characters on Hunyuan Rapid, 600 on Meshy, about 1,000 on Rodin and Tripo, and 4,000 on GPT-6 Astra.

Q: Is text to 3D the same as a 3D text generator?
A: No. Text to 3D makes an object from a description. If you want letters and words in 3D — names, signs, logos — use the free 3D Text Generator, which extrudes fonts into STL or GLB.

Q: Can it make a whole scene?
A: Most engines make one object at a time — make the pieces separately and arrange them in Blender or a game engine. GPT-6 Astra can return a small scene in one GLB when the prompt describes one.

Q: Is text to 3D free?
A: 3D generation is part of every paid plan and credit pack.

Q: Can I print the result?
A: Yes — STL from Rodin, or convert any GLB with the free GLB to STL tool.

## Related pages
- AI 3D Model Generator: https://kenerateai.com/ai-3d-model-generator
- Image to 3D: https://kenerateai.com/image-to-3d-converter
- AI STL Generator: https://kenerateai.com/ai-3d-printing-model-generator

## Sources
- Wikipedia — STL (file format): https://en.wikipedia.org/wiki/STL_(file_format)
- Wikipedia — Wavefront .obj file: https://en.wikipedia.org/wiki/Wavefront_.obj_file
- Wikipedia — FBX: https://en.wikipedia.org/wiki/FBX
- Khronos Group — glTF: https://www.khronos.org/gltf/
- 3MF Consortium — 3MF specification: https://3mf.io/specification/
- Wikipedia — Universal Scene Description (USD / USDZ): https://en.wikipedia.org/wiki/Universal_Scene_Description
- Wikipedia — PLY (file format): https://en.wikipedia.org/wiki/PLY_(file_format)
- Khronos Group — glTF 2.0 specification: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html
- Apple — AR Quick Look: https://developer.apple.com/augmented-reality/quick-look/
- three.js — documentation: https://threejs.org/docs/
- Prusa Knowledge Base — Modeling with 3D printing in mind: https://help.prusa3d.com/article/modeling-with-3d-printing-in-mind_164135
- Prusa Blog — lithophanes and filament transparency: https://blog.prusa3d.com/lets-play-with-filament-transparency-how-to-make-amazing-lifelike-color-photos-with-just-a-simple-color-change_104338/
- Polymers (2024) 16(20):2862 — FFF parameters and translucency of PLA: https://doi.org/10.3390/polym16202862
- Wikipedia — Lithophane: https://en.wikipedia.org/wiki/Lithophane
- W3C — CSS Values and Units Level 3 (absolute lengths): https://www.w3.org/TR/css-values-3/
- Adobe Substance 3D — OpenGL vs DirectX normal maps: https://experienceleague.adobe.com/en/docs/substance-3d/bakers/common-questions/what-is-the-difference-between-the-opengl-and-directx-normal-format
- Blender Manual — Normal Map node: https://docs.blender.org/manual/en/latest/render/shader_nodes/displacement/normal_map.html
- Wikipedia — Normal mapping: https://en.wikipedia.org/wiki/Normal_mapping
- SIL Open Font License: https://openfontlicense.org/
- Meshy Blog — Meshy 7.1 launch (10 Sep 2026): https://www.meshy.ai/blog/meshy-7-1-launch
- Meshy Blog — Meshy 7 and image-to-3D geometry alignment: https://www.meshy.ai/blog/meshy-7-image-to-3d-geometry-alignment
- Meshy Help — Meshy 7 vs Meshy 6 vs Meshy 6 Lite: https://help.meshy.ai/en/articles/15697060-meshy-7-vs-meshy-6-vs-meshy-6-lite-which-ai-model-should-you-use
- Tripo Developer Docs — Tripo H3.1 (v3.1-20260211): https://developers.tripo3d.ai/en/models/v3-1
- VoxelMatters — Tripo AI launches P2.0 with native quad meshes (Sep 2026): https://www.voxelmatters.com/tripo-ai-launches-p2-0-model-to-generate-native-quad-meshes-for-production-pipelines/
- Hyper3D — Rodin Gen-2.5 launch press release (May 2026): https://pressadvantage.com/story/94732-hyper3d-launches-rodin-gen-2-5-bringing-sculpt-level-detail-and-production-control-to-ai-3d-generati
- arXiv — BANG: Dividing 3D Assets via Generative Exploded Dynamics (SIGGRAPH 2025): https://arxiv.org/abs/2507.21493
- befores & afters — Deemos launches Rodin Gen-2 (Oct 2025): https://beforesandafters.com/2025/10/02/deemos-launches-rodin-gen-2-a-groundbreaking-generative-ai-for-intuitive-3d-creation/
- GitHub — Tencent Hunyuan3D 2.1 (open weights): https://github.com/Tencent-Hunyuan/Hunyuan3D-2.1
- Hugging Face — Tencent Hunyuan 3D 2.1 Community License: https://huggingface.co/tencent/Hunyuan3D-2.1/blob/main/LICENSE
- Tencent Cloud — Hunyuan 3D product changelog: https://cloud.tencent.com/document/product/1804/120694
- CNBC — OpenAI rolls out GPT-6 Astra (3 Sep 2026): https://www.cnbc.com/2026/09/03/open-ai-astra-gpt-6-cyber.html
- AWS Bedrock — OpenAI GPT-6 Astra model card: https://docs.aws.amazon.com/bedrock/latest/userguide/model-card-openai-gpt-6-astra.html
- VoxelMatters — GPT-6 Astra can turn photos into 3D models: https://www.voxelmatters.com/gpt-6-astra-can-turn-photos-into-3d-models-and-playable-environments/
- WaveSpeedAI — GPT-6 Astra image-to-3D endpoint: https://wavespeed.ai/models/openai/gpt-6-astra/image-to-3d
- WaveSpeedAI — Hunyuan 3D 3.1 image-to-3D Rapid endpoint: https://wavespeed.ai/models/wavespeed-ai/hunyuan-3d-v3.1/image-to-3d-rapid