Qwen3.5-9B
ModelOpen sourceActiveby Alibaba (Qwen) · family “qwen3b”
Qwen3.5-9B is a multimodal foundation model from the Qwen3.5 family, designed to deliver strong reasoning, coding, and visual understanding in an efficient 9B-parameter architecture. It uses a unified vision-language design... (description from the OpenRouter listing)
in: textin: imagein: videoout: textReasoningTool useStructured output
Epoch Capabilities Index
139.4 #115 of 268
90% CI 136.2 – 141.3
Released
24 Feb 2026
Context window
262K tokens
Max output
33K tokens
Input $ / 1M tokens
$0.10
Output $ / 1M tokens
$0.15
Cached input $ / 1M
Unknown
Each benchmark shown separately with its own source
Benchmark results (6)
| Benchmark | Domain | Score | vs best recorded | Setting | Run | Source |
|---|---|---|---|---|---|---|
| LMCA | agents | 24.5% | 36% | — | — | External ↗ |
| DTBench | reasoning | 71.2% | 72% | — | — | External ↗ |
| Chess Puzzles | games | 12.0% ±3.3 | 17% | none | 27 Aug 2026 | Eval log ↗ |
| Terminal Bench | agents | 9.2% ±2.4 | 11% | agent: little-coder | 2 Mar 2026 | External ↗ |
| OTIS Mock AIME 2024-2025 | math | 61.7% ±6.0 | 62% | none | 27 Aug 2026 | Eval log ↗ |
| GPQA diamond | science | 79.0% ±2.4 | 82% | — | 27 Aug 2026 | Eval log ↗ |
Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.
API list price over time
Price history
$ per 1M tokens
7 recorded prices on 1 Apr 2026 (OpenRouter listing + Internet Archive snapshots); re-read on every data refresh, most recently 11h ago. Steps show when the price changed.
Events
- BenchmarkEpoch AI evaluates Qwen3.5-9BEpoch AI Benchmarking Hub
- Open releaseMajorQwen releases Qwen3.5-9BEpoch AI Benchmarking Hub