AI Models We Use - All Open Source | Free.ai

High-quality 7B model from Mistral AI with excellent instruction following.

by Mistral AI

Mistral Small 3 (24B)

Apache 2.0 24B セルフホスティング

Mistral Small 3 — Apache 2.0. 24B dense, fast inference, strong multilingual. Drop-in replacement …

by Mistral AI

Phi-4 14B

MIT 14B セルフホスティング

Phi-4 — MIT licensed. Microsoft's strongest small model, trained on curated synthetic data.

Qwen3 32B

Apache 2.0 32B セルフホスティング

Mid-size Qwen3. Apache 2.0. Strong multilingual + reasoning. Fits on a single 20GB A100.

by Alibaba

Qwen3 Next 80B

Apache 2.0 80B セルフホスティング

Qwen3-Next-80B is Alibaba's flagship open reasoning model released late 2026. Apache 2.0 licensed. Competitive …

by Alibaba

SmolLM 3 3B

Apache 2.0 3B セルフホスティング

SmolLM 3 — Apache 2.0, Hugging Face's tiny-but-capable open model. Edge deployment friendly.

by HuggingFace

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Code Generation 3

Qwen 2.5 Coder 32B

Apache 2.0 32B セルフホスティング

Best open-source code model. Excels at Python, JavaScript, TypeScript, and 50+ languages.

Qwen3-Coder 7B

Dedicated code model optimized for programming tasks. Supports 100+ languages.

BigCode OpenRAIL-M 15B セルフホスティング

StarCoder 2 15B

StarCoder2 — OpenRAIL-M (commercial-allowed with use-restrictions). Trained on permissively-licensed GitHub.

by BigCode

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Apache 2.0 2.5B セルフホスティング

Image Generation 8

FLUX.1 Krea

Apache 2.0 12B セルフホスティング

FLUX.1 Krea — Apache 2.0 open variant of FLUX tuned for photorealistic output.

by Black Forest Labs

FLUX.1 Schnell

Apache 2.0 12B セルフホスティング

State-of-the-art text-to-image model. Fast generation with stunning quality.

by Black Forest Labs

FLUX.2 Klein 4B

Apache 2.0 4B セルフホスティング

Latest FLUX image generation model with improved quality and style diversity.

by Black Forest Labs

Kolors

Kolors — Apache 2.0. ChatGLM3-based text encoder; exceptional Chinese-English bilingual prompts.

by Kuaishou

Lumina Image 2

Apache 2.0 2.6B セルフホスティング

Lumina Image 2 — Apache 2.0. DiT-based, strong prompt following, highly controllable.

by Alpha-VLLM

PixArt-Σ

OpenRAIL++ 600M セルフホスティング

PixArt-Σ — OpenRAIL++. Transformer-based 4K-capable image gen at a fraction of SDXL's compute.

by PixArt-alpha

SDXL Turbo

OpenRAIL++ 3.5B セルフホスティング

SDXL Turbo — OpenRAIL++. Single-step image generation; order-of-magnitude faster than SDXL.

by StabilityAI

Stable Diffusion XL

OpenRAIL++ 3.5B セルフホスティング

Industry-standard image generation model with wide community support.

by Stability AI

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Apache 2.0 1B adapter セルフホスティング

Video Generation 6

AnimateDiff v3

AnimateDiff — Apache 2.0. Motion adapter that animates SDXL/SD 1.5 images.

by AnimateDiff

CogVideoX-2B

Apache 2.0 2B セルフホスティング

Text-to-video generation model producing 4-8 second clips.

by Tsinghua University

HunyuanVideo 1.5

Apache 2.0 1.5B セルフホスティング

Generate stunning videos from text prompts. Higher quality than CogVideoX with more natural motion.

by Tencent

Mochi 1

Apache 2.0 10B セルフホスティング

Mochi 1 — Apache 2.0! The only fully-open frontier text-to-video model. Strong motion, cinematic.

by Genmo

SadTalker

MIT 500M セルフホスティング

SadTalker — MIT. Audio-driven talking-head video generation. Photo + audio in, lip-synced video out. …

by OpenTalker

Wan 2.1

Apache 2.0 14B セルフホスティング

Wan 2.1 — Apache 2.0! First fully-open competitive T2V+I2V model.

by Alibaba

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Text-to-Speech (TTS) 9

Bark

MIT 1.5B セルフホスティング

Bark — MIT licensed text-to-audio model that generates speech, music, sound effects, and non-speech …

by Suno AI

Chatterbox

Highly expressive TTS with voice cloning support.

by Resemble AI

Kokoro

Apache 2.0 セルフホスティング

Ultra-fast TTS with natural intonation. Supports streaming.

by Hexgrad

MeloTTS

Apache 2.0 2.3B セルフホスティング

High-quality multilingual text-to-speech model.

by MyShell

OuteTTS

Apache 2.0 セルフホスティング

TTS with built-in voice cloning from short audio samples.

by Oute

Parler-TTS Large

Parler-TTS — Apache 2.0. Fully open reproduction of Google's Parler. Control tone, pace, and …

by HuggingFace

Piper

Apache 2.0 0.6B セルフホスティング

Fast and lightweight TTS with dozens of voices and languages.

by Rhasspy

Qwen3-TTS 0.6B

Advanced TTS with 3-second voice cloning. Clone any voice from a short sample. Multilingual …

StyleTTS 2

MIT 24M セルフホスティング

StyleTTS 2 — MIT licensed, zero-shot voice cloning from a single reference sample. Small, …

by Yinghao Aaron Li

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Speech-to-Text (STT) 3

Distil-Whisper large-v3

MIT 756M セルフホスティング

Distil-Whisper — MIT licensed. 6× faster than Whisper large-v3 with ~1% WER gap. Drop-in …

by HuggingFace

Moonshine Base

MIT 61M セルフホスティング

Moonshine — MIT. Optimized for edge devices; faster than Whisper tiny at better accuracy.

by Useful Sensors

faster-whisper large-v3

CTranslate2 port of OpenAI Whisper. Fast and accurate speech recognition in 99 languages.

by OpenAI / SYSTRAN

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Music Generation 2

ACE-Step 3.5B

MIT 3.5B セルフホスティング

Generate complete songs with vocals, lyrics, and instrumentation in seconds. Supports any genre and …

by ACE-Step

AudioLDM 2

Apache 2.0 セルフホスティング

Generate music from text descriptions. Any genre, mood, or style.

by Haohe Liu

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Apache 2.0 77M/pair セルフホスティング

Translation 2

MadLAD-400 3B

Apache 2.0 3B セルフホスティング

Google's Massive Multilingual Adaptive Dataset translation model. Supports 450+ languages with Apache 2.0 license.

by Google

Opus-MT

Opus-MT — Apache 2.0. 1000+ language-pair models. Tiny footprint, no licensing risk.

by Helsinki-NLP

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Vision & Multimodal 3

InternVL 3 8B

MIT 8B セルフホスティング

InternVL 3 — MIT. One of the strongest open VLMs, near Qwen-VL 72B quality …

by Shanghai AI Lab

Molmo 7B

Molmo — Apache 2.0 open vision-language model from AI2. Strong on document+chart understanding.

by Allen Institute

Qwen2.5-VL 7B

Advanced vision-language model that understands images, charts, and documents. Ask questions about any image.

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OCR & Document Understanding 4

Florence-2 Large

MIT 770M セルフホスティング

Florence-2 — MIT. Unified vision model doing OCR, object detection, captioning, and grounding in …

Apache 2.0 580M セルフホスティング

GOT-OCR 2.0

Unified OCR model that handles text, tables, charts, and mathematical equations. Far superior to …

Apache 2.0 multi セルフホスティング

PaddleOCR

PaddleOCR — Apache 2.0. Industrial-grade OCR supporting 80+ languages. Layout analysis, table detection, handwriting.

by PaddlePaddle

TrOCR Base

MIT 334M セルフホスティング

TrOCR — MIT. Transformer-based OCR, especially strong on handwriting.

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Apache 2.0 333M セルフホスティング

Image Enhancement & Upscaling 5

BiRefNet v2

MIT 220M セルフホスティング

BiRefNet v2 — MIT. Bilateral reference dichotomous segmentation. Sharper than U-2-Net / RMBG on …

by ZhengPeng7

GFPGAN

GFPGAN — Apache 2.0. Face restoration + enhancement model. Fixes blurry/damaged portraits.

by Tencent

Marigold Depth

OpenRAIL++-M 865M セルフホスティング

Marigold — OpenRAIL++-M. CVPR 2024 best paper monocular depth estimator, fine-tuned from Stable Diffusion. …

by ETH Zurich

Real-ESRGAN

BSD セルフホスティング

State-of-the-art image upscaling and enhancement.

by Xintao Wang

Segment Anything 2

Apache 2.0 224M セルフホスティング

SAM 2 — Apache 2.0. Meta's universal segmentation model, with video support.

by Meta

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Audio Source Separation 2

Demucs

Separate vocals, drums, bass, and other stems from any song.

by Meta

Spleeter

MIT 20M セルフホスティング

Spleeter — MIT. Stem separation (vocals, drums, bass, piano, other).

by Deezer

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3D Generation 3

InstantMesh

Apache 2.0 1B セルフホスティング

InstantMesh — Apache 2.0. Single-image → 3D mesh in seconds.

by TencentARC

TRELLIS

MIT 2B セルフホスティング

TRELLIS — MIT. Unified 3D generation from text or image. Industry-leading mesh quality.

TripoSR

by VAST AI / Stability AI

Generate 3D meshes from single images in under a second. Outputs GLB or OBJ …

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Text Embeddings 3

BGE-M3

Apache 2.0 305M セルフホスティング

State-of-the-art multilingual text embedding model. Powers semantic search and similarity matching.

by BAAI

Nomic Embed v2

Nomic Embed v2 — Apache 2.0. Matryoshka-embeddings, truncatable 768→256→128 dims.

by Nomic AI

mxbai-embed-large-v1

Apache 2.0 335M セルフホスティング

mxbai-embed-large-v1 — Apache 2.0. Strong on MTEB English benchmark.

by mixedbread.ai

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