Qwen3.8-MaxvsGrok 4.1 Fast
Qwen3.8-Max | Grok 4.1 Fast | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | 2.4T | — |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 1M | — |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $2.00Alibaba | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $6.00Alibaba | — |
| Benchmarks | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 94% | 19% |
| BenchmarksPublished by one model only | ||
SWE-Bench ProAgentic coding — Can the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | 67.7% | — |
PaperBenchResearch reproduction — reproducing the results of an ML research paper end to end | 93% | — |
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 86.6% | — |
JobBenchProfessional tool use — Tests the AI on professional workplace tasks that require using real work tools — the kind of multi-step jobs an office worker handles. Higher is better. | 53.4% | — |
OSWorld-VerifiedAgentic computer use — Can the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | 86.1% | — |
CharXiv ReasoningChart reasoning — Can the AI read and reason about complex charts and figures, not just text? Higher is better. | 88.4% | — |
BabyVisionVisual reasoning — Tests core visual reasoning — seeing and understanding images the way even young children can, which AIs often find surprisingly hard. Higher is better. | 82% | — |
| Overview | ||
| Company | Qwen | SpaceXAI |
| Release date | Aug 3 2026 | Nov 19 2025 |
| Access | Proprietary | Proprietary |
Other comparisons
Qwen3.8-MaxvsClaude Opus 5Grok 4.1 FastvsClaude Opus 5Qwen3.8-MaxvsGPT-5.6 SolGrok 4.1 FastvsGPT-5.6 SolQwen3.8-MaxvsGemini 3.7 FlashGrok 4.1 FastvsGemini 3.7 FlashQwen3.8-MaxvsMuse GlimmerGrok 4.1 FastvsMuse GlimmerQwen3.8-MaxvsDeepSeek-V4-Pro-0813Grok 4.1 FastvsDeepSeek-V4-Pro-0813Qwen3.8-MaxvsMistral Medium 3.5Grok 4.1 FastvsMistral Medium 3.5
Frequently asked questions
Qwen3.8-Max leads Grok 4.1 Fast on 1 of the 1 benchmark they both report (BullshitBench v2). Grok 4.1 Fast shipped 257 days before Qwen3.8-Max, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On BullshitBench v2, Qwen3.8-Max leads at 94% vs Grok 4.1 Fast at 19%.
Qwen3.8-Max was released by Qwen on Aug 3 2026.
Grok 4.1 Fast was released by SpaceXAI on Nov 19 2025.