Qwen put Max-scale weights on the clock
Qwen now has a dated open-weight path and an independent performance read showing agentic gains, but it does not lead Kimi K3 on score or cost and the weights are not yet deployable. Artificial Analysis scored Qwen3.8 Max at 53, seven points above Qwen3.7 Max, but Kimi K3 remained four points ahead at roughly half the per-task cost; deployable weights and vLLM day-zero support remain promises until next week, with observed gains in agentic work rather than scientific reasoning.
Qwen3.8-Max is live: $2/$6 per MTok, flat across the full 1M context. One gotcha: reasoning_effort defaults to xhigh, and thinking tokens bill as output. We hit the endpoint in Apidog: it parses the SSE stream and shows the reasoning deltas separately in the timeline, so you…
Qwen3.8-Max is live: $2/$6 per MTok, flat across the full 1M context. One gotcha: reasoning_effort defaults to xhigh, and thinking tokens bill as output. We hit the endpoint in Apidog: it parses the SSE stream and shows the reasoning deltas separately in the timeline, so you can see what xhigh burns before the answer even starts. Then decide if medium is fine. Weights next week.
vLLM will support Qwen3.8-Max's open-source as usual on day-0, stay tuned🥰
Alibaba's Qwen3.8 Max makes real progress on agentic work tasks, scoring 53 on the Artificial Analysis Intelligence Index at $1.76 per task, but open weights leader Kimi K3 remains 4 points ahead at half the cost per task ($0.86) @Alibaba_Qwen has released Qwen3.8 Max, which…
Alibaba's Qwen3.8 Max makes real progress on agentic work tasks, scoring 53 on the Artificial Analysis Intelligence Index at $1.76 per task, but open weights leader Kimi K3 remains 4 points ahead at half the cost per task ($0.86) @Alibaba_Qwen has released Qwen3.8 Max, which Alibaba states is a 2.4T total parameter MoE activating 95B parameters per forward pass. The planned weights release would end Alibaba's pattern, in place since Qwen2.5 Max (January 2025), of shipping Max models as closed weights, and at 2.4T parameters would be ~6x larger than Alibaba's largest open weights release to date (Qwen3.5 397B) and second in size only to Kimi K3 (2.8T) Key takeaways: ➤ Qwen3.8 Max scores 53 on the Artificial Analysis Intelligence Index, up 7 points from Qwen3.7 Max (46). It is in line with Claude Sonnet 5 (max, 53) and sits second among Chinese labs, ahead of GLM-5.2 (max, 51) but behind Kimi K3 (max, 57) ➤ Qwen3.8 Max scores 1599 Elo on GDPval-AA, a 329 Elo gain over Qwen3.7 Max and its largest step forward. This places it effectively tied with Claude Sonnet 5 (1600) and ahead of GLM-5.2 (max, 1510), though behind Kimi K3 (1687) ➤ On AA-Briefcase, our benchmark for long-horizon knowledge work, Qwen3.8 Max scores 1430 Elo, ahead of Claude Sonnet 5 (max, 1385) and GLM-5.2 (max, 1253). Only Claude Opus 5 (max, 1721), Claude Fable 5 (1574), Kimi K3 (max, 1542) and GPT-5.6 Sol (max, 1504) score higher ➤ Remaining gains over Qwen3.7 Max are in agentic coding, with Terminal-Bench v2.1 up 6 points. Scientific reasoning is close to flat (HLE +2 points, CritPt +5 points, GPQA unchanged), while SciCode (-4 points), AA-LCR (-4 points) and AA-Omniscience (-11 points, driven by a hallucination rate rising 23% to 40%) regress ➤ Qwen3.8 Max costs $1.76 per Intelligence Index task, equivalent to Claude Sonnet 5 ($1.72). This is ~2x Kimi K3 (max, $0.86) and ~3x GLM-5.2 (max, $0.59), with only Claude Opus 5 (max, $2.34) and Claude Fable 5 ($3.15) costing more among leading models. Cost is driven partly by rising token usage: Qwen3.8 Max used 150M output tokens to run the Intelligence Index, up 50% from Qwen3.7 Max (100M), though half of Claude Sonnet 5 (300M) ➤ The 𝜏³-Bench Banking result (40%) appears out of distribution. It is a 29 point gain over Qwen3.7 Max, a large jump, and places Qwen3.8 Max ahead of models that outscore it on other agentic evaluations Key model details: ➤ Size: 2.4T total parameters, ~95B active per forward pass (MoE) ➤ Context window: 1M tokens ➤ Multimodal: text, image and video input with text output ➤ Pricing: $2.00/$6.00 per 1M input/output tokens on the @alibaba_cloud first-party API, with a $0.25 per 1M cache hit price ➤ Availability: Alibaba Cloud first-party API. Alibaba states the weights will be released next week
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On AA-Briefcase, Qwen3.8 Max scores 1430 Elo overall, driven by analytical quality rather than presentation: its Analytical Quality Elo (1595) is 255 points above its Presentation Elo (1340). It passes 48% of rubric checks, ahead of Claude Sonnet 5 (max, 42%) and GPT-5.6 Sol (max, 42%) but behind Kimi K3 (max, 51%), and completes all checks on 3 of 89 tasks