Alibaba's Qwen3.6 27B is the new open weights leader under 150B parameters scoring 46 on the Artificial Analysis Intelligence Index, but uses ~3.7x the output tokens and costs ~21x more than Gemma 4 31B (39) to run the full Intelligence Index @Alibaba_Qwen has released two open weights models in the Qwen3.6 family: Qwen3.6 27B (Dense, 46 on the Intelligence Index) and Qwen3.6 35B A3B (MoE, 43). The MoE variant has 36B total parameters but only activates 3B per forward pass. Both are Apache 2.0 licensed, support 262K context, include native multimodal input, and use the unified thinking/non-thinking hybrid architecture. Unlike Qwen3.5, Alibaba has not released larger Qwen3.6 models as open weights - Qwen3.6 Plus and Qwen3.6 Max Preview remain proprietary, so the Qwen3.6 open weights family is currently all under 50B models. All scores below are for reasoning mode. The Intelligence Index is our synthesis metric incorporating 10 evaluations covering agentic tasks, coding, and scientific reasoning. Key takeaways: ➤ Qwen3.6 27B is the most intelligent open weights model under 150B parameters. At 46 on the Intelligence Index, Qwen3.6 27B is ahead of Qwen3.6 35B A3B (43), Qwen3.5 27B (42), and Gemma 4 31B (39). It is also ahead of larger open weights models including NVIDIA Nemotron 3 Super 120B A12B (Reasoning, 36), Qwen3.5 122B A10B (42) and gpt-oss-120b (high, 33). In native BF16 precision, the 27B takes ~56GB to store the weights, fitting on a single H100, and in 4-bit quantization the weights fit on consumer hardware with 16GB+ of RAM ➤ Qwen3.6 35B A3B is the most intelligent open weights model with ~3B active parameters, 6 points ahead of Qwen3.5 35B A3B (37) and 13 points ahead of GLM-4.7-Flash (30). Other ~3B active peers include Gemma 4 26B A4B (31), Qwen3 Coder Next (80B total, 28), and NVIDIA Nemotron Cascade 2 30B A3B (28) ➤ AA-Omniscience improvement is driven entirely by abstention rather than accuracy. Qwen3.6 27B's hallucination rate falls from 80% to 48% versus Qwen3.5 27B, while accuracy is roughly flat - consistent with our finding that AA-Omniscience accuracy typically correlates with total parameter count and Qwen3.6 27B retains the same 27B parameter count as its predecessor. The 35B A3B shows the same pattern whereby hallucination drops from 84% to 50% while accuracy remains equivalent ➤ Token usage is up across both models versus Qwen3.5 and significantly higher than Gemma 4 31B. Qwen3.6 27B used ~144M output tokens to run the Intelligence Index (~1.5x Qwen3.5 27B at 98M, ~3.7x Gemma 4 31B at 39M). Qwen3.6 35B A3B used ~143M (~1.4x Qwen3.5 35B A3B at 100M, ~3.7x Gemma 4 31B) ➤ The 27B got materially more expensive while the 35B A3B is roughly flat versus predecessor. Per-token pricing on Alibaba Cloud moved differently, with the 27B going from $0.30/$2.40 to $0.60/$3.60 while the 35B A3B (Reasoning) remains nearly flat at $0.248/$1.485 (vs $0.25/$2.00 for Qwen3.5 35B A3B). Qwen3.6 27B costs ~$659 to run the Intelligence Index, ~2.2x Qwen3.5 27B (~$299) and ~21x Gemma 4 31B (~$31 at median third-party pricing of $0.14/$0.40 per 1M input/output tokens). Qwen3.6 35B A3B costs ~$280, roughly tied with Qwen3.5 35B A3B (~$302) and ~9x Gemma 4 31B ➤ Qwen3.6 27B is competitive with leading models on agentic real-world work tasks despite its size. At 1414 Elo on GDPval-AA, Qwen3.6 27B is ahead of recent open weights peers Qwen3.6 35B A3B (1297), Qwen3.5 27B (1157) and Gemma 4 31B (1115), but trails larger open weights leaders including DeepSeek V4 Pro (Reasoning, Max Effort, 1554) and GLM-5.1 (Reasoning, 1535). It matches DeepSeek V4 Flash (Reasoning, High Effort, 1414) at 284B total parameters, and sits roughly in line with GPT-5.4 mini (xhigh, 1436) and Muse Spark (1421). ➤ Non-reasoning variants remain equivalent versus Qwen3.5. Qwen3.6 27B (Non-reasoning, 37) is effectively tied with Qwen3.5 27B (Non-reasoning, 37); Qwen3.6 35B A3B (Non-reasoning, 32) is equivalent to Qwen3.5 35B A3B (Non-reasoning, 31). The Qwen3.6 generation gains are concentrated in reasoning mode Other information: ➤ Context window: 262K tokens (equivalent to Qwen3.5) ➤ License: Apache 2.0 ➤ Multimodality: Native vision input (text and image), text output ➤ API pricing (Alibaba Cloud): Qwen3.6 27B: $0.60/$3.60, Qwen3.6 35B A3B (Reasoning): $0.248/$1.485 ➤ Availability: Available on Alibaba Cloud first-party API. Qwen3.6 35B A3B is available on several third-party APIs such as @DeepInfra, @parasail_io, @clarifai and @novita_labs