# Open weights — page 2

> Open-weights model releases and what people are doing with them.

- [BreezeBlue releases Breeze-TTS-2, a 3B English and Chinese TTS, non-commercial](https://shipped.anth.us/open-weights/breezeblue-breeze-tts-2/index.md): Breeze-TTS-2 is a roughly 3B bilingual TTS with cloning, voice design and streaming; weights under a non-commercial licence. (2026-08-25)
- [Qwen releases Qwen3.8-27B, a dense 27B vision-language model under Apache 2.0](https://shipped.anth.us/open-weights/qwen-qwen3-8-27b/index.md): Qwen3.8-27B is a dense 27B model with a vision encoder, 262,144-token native context and switchable thinking, under Apache 2.0. (2026-08-05)
- [NVIDIA releases MagpieTTS Multilingual 357M v2607, 12 languages with preset voices](https://shipped.anth.us/open-weights/nvidia-magpie-tts-multilingual-357m/index.md): MagpieTTS Multilingual 357M v2607 covers 12 languages with five preset voices; voice cloning was removed. NVIDIA Open Model License. (2026-07-21)
- [Moonshot releases Kimi K3, a 2.8T-parameter open-weights multimodal model](https://shipped.anth.us/open-weights/moonshotai-kimi-k3/index.md): Kimi K3 is a 2.8T mixture-of-experts model with 104B active parameters and 1M-token context, under the Kimi K3 License. (2026-06-13)
- [Boson AI releases Higgs TTS 3, a 4B zero-shot voice cloning model for 100+ languages](https://shipped.anth.us/open-weights/boson-ai-higgs-tts-3/index.md): Higgs TTS 3 is a roughly 4B voice-cloning TTS with inline control tags and 100+ languages; research and non-commercial licence. (2026-06-04)
- [StepFun releases Step 3.7 Flash, a 198B vision-language MoE with 11B active parameters](https://shipped.anth.us/open-weights/stepfun-ai-step-3-7-flash/index.md): Step 3.7 Flash is a 198B sparse MoE vision-language model with about 11B active parameters and 256k context, under Apache 2.0. (2026-05-23)
- [Supertone releases Supertonic 3, a 99M on-device TTS in 31 languages](https://shipped.anth.us/open-weights/supertone-supertonic-3/index.md): Supertonic 3 is a roughly 99M ONNX TTS for local and browser use across 31 languages; OpenRAIL-M model, MIT sample code. (2026-05-06)
- [IBM releases Granite 4.1 8B, an Apache 2.0 instruct model for enterprise tasks](https://shipped.anth.us/open-weights/ibm-granite-granite-4-1-8b/index.md): Granite 4.1 8B is a long-context instruct model with better tool calling and instruction following, under Apache 2.0. (2026-04-29)
- [OpenBMB releases VoxCPM2, a 2B Apache 2.0 TTS with voice design and 48 kHz output](https://shipped.anth.us/open-weights/openbmb-voxcpm2/index.md): VoxCPM2 is a 2B tokenizer-free TTS covering 30 languages, with voice design, cloning and 48 kHz output, under Apache 2.0. (2026-04-03)
- [Mistral releases Medium 3.5, a dense 128B model with a modified MIT licence](https://shipped.anth.us/open-weights/mistralai-mistral-medium-3-5-128b/index.md): Mistral Medium 3.5 is a dense 128B instruct, reasoning and coding model with 256k context. The licence excludes large-revenue companies. (2026-03-31)

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