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Model zoo

NextTransformer has 36 model cards in seven families. Every method runs in the same shell and is calibrated to the same training compute. Open a method in the observatory for its architecture diagram, curves and model card; “registered” methods have a card and a configuration but no published run.

Family Method Paper Result
Baseline Dense Baseline (dense_full) Attention Is All You Need published
Looped Universal Transformer · ACT (ut_act) Universal Transformers published
Looped Fixed Recursive (fixed_recursive) Fixed Recursive · shared-core control baseline published
Looped Huginn · Recurrent-depth (huginn) Scaling up Test-Time Compute with Latent Reasoning: A Recurrent Depth Approach published
Looped Ouro · LoopLM (ouro) Scaling Latent Reasoning via Looped Language Models published
Looped DeepLoop (deeploop) DeepLoop · v2 published
Looped Mixture-of-Recursions · MoR (mor) Mixture-of-Recursions: Learning Dynamic Recursive Depths for Adaptive Token-Level Computation published
Looped LoopFormer-Fixed2 (loopformer) LoopFormer: Elastic-Depth Looped Transformers for Latent Reasoning via Shortcut Modulation published
Looped Circle Loop (circle) Circle Loop · method specification published
Sparse DeepSeek Sparse Attention · DSA (dsa) DeepSeek-V3.2-Exp · DeepSeek Sparse Attention published
Sparse Qwen Sparse Attention · QSA (qsa) Qwen3.8-Next technical report · §2.1.2 QSA published
Sparse Native Sparse Attention · NSA (nsa) Native Sparse Attention: Hardware-Aligned and Natively Trainable Sparse Attention published
Sparse SeerAttention-style (seer) SeerAttention: Learning Intrinsic Sparse Attention in Your LLMs published
Sparse Mixture of Block Attention · MoBA (moba) MoBA: Mixture of Block Attention for Long-Context LLMs published
Linear DeltaNet (deltanet) Parallelizing Linear Transformers with the Delta Rule over Sequence Length published
Linear Gated Slot Attention · GSA + QK-norm (gsa_qknorm) Gated Slot Attention for Efficient Linear-Time Sequence Modeling published
Linear Gated Linear Attention · GLA (gla) Gated Linear Attention Transformers with Hardware-Efficient Training published
Linear Kimi Delta Attention · KDA (kda) Kimi Linear: An Expressive, Efficient Attention Architecture published
Linear RetNet · Retention (retnet) Retentive Network: A Successor to Transformer for Large Language Models published
Linear ELU-Norm (elu_qknorm) Transformers are RNNs: Fast Autoregressive Transformers with Linear Attention published
Linear Gated DeltaNet · GDN (gdn) Gated Delta Networks: Improving Mamba2 with Delta Rule published
Residual Standard Residual (residual_standard) Identity Mappings in Deep Residual Networks published
Residual Block Attention Residuals · AttnRes (attnres) Attention Residuals published
Residual Hyper-Connections · HC (hc) Hyper-Connections published
Residual Manifold-Constrained Hyper-Connections · mHC (mhc) mHC: Manifold-Constrained Hyper-Connections published
Hybrid Hybrid GDN + MHA (gdn_hybrid) Gated Delta Networks: Improving Mamba2 with Delta Rule published
Hybrid Hybrid GDN + SWA (gdn_hybrid_swa) Gated Delta Networks: Improving Mamba2 with Delta Rule published
Hybrid Hybrid DeltaNet + MHA (deltanet_hybrid) Parallelizing Linear Transformers with the Delta Rule over Sequence Length coming soon
Hybrid Hybrid KDA + MLA-NoPE (kda_hybrid) Kimi Linear: An Expressive, Efficient Attention Architecture published
Hybrid Hybrid GDN + QSA (qsa_hybrid) Qwen3.8-Next technical report · §2.1.2 QSA coming soon
Hybrid Hybrid MoBA + MHA (moba_hybrid) MoBA: Mixture of Block Attention for Long-Context LLMs coming soon
Others SSSL (sssl) nanochat · GPT d24 implementation published
Others Multi-Query Attention · MQA (mqa) Fast Transformer Decoding: One Write-Head is All You Need published
Others Grouped-Query Attention · GQA (gqa) GQA: Training Generalized Multi-Query Transformer Models from Multi-Head Checkpoints published
Others Multi-head Latent Attention · MLA + QK-norm (mla_qknorm) DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model published
Others MLA-NoPE + QK-norm (mla_nope_qknorm) DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model published

See the configuration reference for training configurations. Add your own as a plugin.