AI tool comparison
OpenMythos vs Qwen3.6-35B-A3B
Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.
Models
OpenMythos
Open reconstruction of Claude Mythos using Recurrent-Depth Transformers
50%
Panel ship
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Community
Paid
Entry
OpenMythos is a community-driven theoretical reconstruction of Claude Mythos's suspected architecture, implementing a Recurrent-Depth Transformer (RDT) — a looped transformer that recycles layers multiple times per forward pass for deeper reasoning without massive parameter growth. The project drew 10,100 GitHub stars in its first week, reflecting intense developer curiosity about what's powering Anthropic's latest generation models. The architecture has three stages: a Prelude (initial layers), a Recurrent Block (looped up to 32 times with shared weights), and a Coda (final layers). Rather than stacking hundreds of unique layers, the recurrent block runs the same weights multiple times with learned injection parameters updating hidden states between loops — enabling implicit chain-of-thought reasoning in continuous latent space without generating intermediate tokens. The project supports Grouped Query Attention (GQA) with optional Flash Attention 2, Multi-Latent Attention (MLA), and sparse MoE with routed and shared experts. Model scales range from 1B to 1T parameters. The key claim is that RDT achieves reasoning depth comparable to fixed-depth models with far more parameters, since computational complexity scales with loop iterations rather than layer count. This would explain how Claude Mythos achieves strong reasoning performance without the extreme parameter counts of brute-force scaling — though Anthropic has neither confirmed nor denied the architecture.
AI Models
Qwen3.6-35B-A3B
35B MoE model, only 3B active params, beats Claude Sonnet 4.5 on benchmarks
75%
Panel ship
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Community
Paid
Entry
Qwen3.6-35B-A3B is Alibaba's latest sparse Mixture-of-Experts model — 35 billion total parameters, but only 3 billion activate per forward pass. That efficiency makes it competitive with models three to four times larger at inference while fitting comfortably on consumer hardware. It's natively multimodal, handling image, video, document, and spatial reasoning inputs out of the box, with a 262K context window extensible to 1M tokens. The benchmark numbers have been drawing serious attention. SWE-bench Verified: 73.4% (vs Gemma 4-31B at 52%, and substantially above Claude Sonnet 4.5). MMMU: 81.7 (Claude Sonnet 4.5 scores 79.6). AIME 2026: 92.7. On local inference hardware, community reports show 79–187 tokens/second depending on GPU tier, making it genuinely usable for agentic workflows without API latency. Released under Apache 2.0. The timing matters. With Claude Opus 4.7 drawing community criticism over tokenizer-inflated pricing, Qwen3.6-35B-A3B is arriving as a credible local alternative for agentic coding. r/LocalLLaMA threads from the past week show active migration from Opus 4.7 to Qwen3.6 for cost-sensitive workloads. It's currently #1 trending on Replicate.
Reviewer scorecard
“The RDT architecture is backed by published research — this isn't pure speculation. The code is clean, the model configs cover 1B to 1T scales, and the Flash Attention 2 + MoE integration is production-quality. Even if the Mythos attribution is wrong, the architecture itself is worth experimenting with for inference-efficient reasoning.”
“73.4% SWE-bench with 3B active params is extraordinary efficiency. This runs on a single A100 at usable speed, which means you can deploy it self-hosted for agentic coding pipelines without paying frontier API rates. The Apache license seals it — this goes into our infra immediately.”
“This is fundamentally speculative — Anthropic has said nothing about Mythos's architecture, and the RDT attribution is community inference. Shipping models based on 'theoretical reconstructions' of closed-source systems is a recipe for building on a false premise. Interesting for research, but don't bet production systems on it.”
“Alibaba benchmarks should be read with appropriate skepticism — SWE-bench scores are sensitive to eval harness choices and there have been reproducibility issues with some Qwen claims before. Also, the 262K context at 3B active params sounds too good; I'd want to see real-world retrieval accuracy at 200K+ before trusting it in production agentic pipelines.”
“Whether or not OpenMythos accurately mirrors Claude's internals, the underlying RDT architecture is genuinely compelling for reasoning-heavy tasks. The community reverse-engineering of frontier model architectures is a powerful forcing function — it accelerates open-source capability even when the attribution turns out to be wrong.”
“MoE with sparse activation is clearly the dominant architecture for the next wave of open models. The fact that 3B active params can match 2024's frontier is a signal about where inference efficiency is heading. In 12 months, 'frontier-competitive' will mean running locally on a MacBook.”
“Unless you're a researcher actively training models, OpenMythos is theoretical infrastructure without immediate creative application. Follow the project for when pre-trained checkpoints ship — that's when it becomes practically useful for creative workflows.”
“Native multimodal handling of images, video, and documents at this efficiency is a game-changer for content pipelines. If the quality holds up on real-world design tasks, this replaces a stack of specialized models with one local deployment.”
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