Qwen3.8-MaxvsComposer 2.5
Qwen3.8-Max | Composer 2.5 | |
|---|---|---|
| Specifications | ||
Parameters | 2.4T | — |
Context window | 1M | — |
| Benchmarks | ||
Agentic coding SWE-Bench ProCan 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%Best | 54% |
Multilingual coding SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | — | 79.8% |
Agentic coding CursorBench v3.2Cursor's own test of harder, real-world coding tasks inside a code editor, on the refreshed v3.2 task set. Scores aren't comparable with v3.1. Higher is better. | — | 56.1% |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | — | 63.2% |
Agentic coding DeepSWE 1.0Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. Higher is better. | — | 18% |
Research reproduction PaperBenchreproducing the results of an ML research paper end to end | 93% | — |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 92% |
Agentic terminal coding Terminal-Bench 2.1Can 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%Best | 73% |
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | — | 69.3% |
Professional tool use JobBenchTests 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% | — |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | 86.1% | — |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | 88.4% | — |
Visual reasoning BabyVisionTests core visual reasoning — seeing and understanding images the way even young children can, which AIs often find surprisingly hard. Higher is better. | 82% | — |
Community preference Arena Elo (Text)Real people chat with two anonymous AIs side by side and vote for the answer they prefer. Votes become a chess-style Elo rating on arena.ai — it measures which AI people actually like, not test scores. Higher is better. | 1491 | — |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1667 | — |
| Overview | ||
| Company | Qwen | SpaceXAI |
| Release date | Aug 3 2026 | May 18 2026 |
| Access | Proprietary | Proprietary |
Which is better: Qwen3.8-Max or Composer 2.5?
Qwen3.8-Max leads Composer 2.5 on 2 of the 2 benchmarks they both report (SWE-Bench Pro, Terminal-Bench 2.1). Composer 2.5 shipped 77 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 SWE-Bench Pro, Qwen3.8-Max leads at 67.7% vs Composer 2.5 at 54%. On Terminal-Bench 2.1, Qwen3.8-Max leads at 86.6% vs Composer 2.5 at 73%.
Frequently asked questions
Qwen3.8-Max was released by Qwen on Aug 3 2026.
Composer 2.5 was released by SpaceXAI on May 18 2026.
Qwen3.8-Max leads on SWE-Bench Pro — Qwen3.8-Max 67.7% vs Composer 2.5 54%.
Other comparisons
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