Reflection releases Beam, a 501B open-weights MoE under Apache 2.0
Beam is Reflection's first open model: 501B total and 23B active parameters, 1M-token context, under Apache 2.0.
Tagged reasoning-model
Aleph Alpha releases Kolibri 1, a 78B German and English reasoning MoE under Apache 2.0
Kolibri 1 is a 78B mixture-of-experts reasoning model with 3.46B active parameters, tuned for German and English, under Apache 2.0.
Xiaomi MiMo releases MiMo-V2.6-Pro-RL, a 1.02T omnimodal MoE under MIT
MiMo-V2.6-Pro-RL is the flagship of the MiMo-V2.6 series: 1.02T total, 42B active, 1M context, text, image, video and audio in.
JetBrains releases Mellum2.1 Thinking, a 12B coding MoE with 2.5B active, under Apache 2.0
Mellum2.1 Thinking is a 12B mixture-of-experts reasoning model with 2.5B active, retrained mostly with reinforcement learning on real repositories.
DeepSeek releases V4.1-Flash, a multimodal MoE with a much smaller KV cache, under MIT
DeepSeek-V4.1-Flash is a 552B-backbone multimodal MoE with 1M-token context and a 890-byte-per-token KV cache, under MIT.
Z.ai releases GLM-5.3, a 753B open-weights model aimed at coding and cyber tasks
GLM-5.3 reuses the GLM-5.2 base with new post-training. The weights are public under a custom glm-5.3 licence.
Mistral releases Medium 3.5, a dense 128B model with a modified MIT licence
Mistral Medium 3.5 is a dense 128B instruct, reasoning and coding model with 256k context. The licence excludes large-revenue companies.
NVIDIA releases Nemotron 3 Nano 30B-A3B, a hybrid Mamba-MoE reasoning model
Nemotron 3 Nano is a 30B hybrid Mamba-2 and MoE model with 3.5B active parameters, under the NVIDIA Nemotron Open Model License.
Ai2 releases Olmo 3, with a fully documented 32B Think model under Apache 2.0
Olmo 3 has 7B and 32B Instruct and Think variants. Ai2 releases code, checkpoints and training details alongside the weights.
Moonshot releases Kimi K2 Thinking, a 1T MoE thinking agent with native INT4
Kimi K2 Thinking is a 1T-parameter MoE with 32B active, 256K context and native INT4 quantisation, under a modified MIT licence.