Claude Opus 5.5 vs Qwen3.5 4B: Release Comparison
Comparison of the Claude Opus 5.5 and Qwen3.5 4B releases: 5 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 7 models.
- For intelligence, Claude Opus 5.5 scores highest: Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) at 58, against Qwen3.5 4B (Reasoning) at 13 for Qwen3.5 4B.
Releases compared
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost per Task (USD, Log Scale)
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indexes
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2.1, AA-Briefcase v1.1, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2.1, AA-Briefcase v1.1, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) |  Anthropic | 58 | 61 | 64 | 63 | - | 60 | 66 | $5.98 | $2.9 | $4.00 | $20.00 | $0.20 | $8,708 | 119k | 84k | 260M | - | - | - | - | - | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Opus 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | Anthropic | 56 | 58 | 62 | 61 | - | 59 | 63 | $3.46 | $2.9 | $4.00 | $20.00 | $0.20 | $4,057 | 66k | 40k | 100M | - | - | - | - | - | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Opus 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | Anthropic | 54 | 56 | 59 | 59 | - | 56 | 61 | $1.82 | $2.9 | $4.00 | $20.00 | $0.20 | $2,172 | 36k | 18k | 53M | - | - | - | - | - | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Opus 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | Anthropic | 51 | 54 | 57 | 57 | - | 54 | 60 | $1.34 | $2.9 | $4.00 | $20.00 | $0.20 | $1,627 | 26k | 12k | 38M | - | - | - | - | - | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Opus 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | Anthropic | 42 | 46 | 48 | 52 | - | 45 | 53 | $0.55 | $2.9 | $4.00 | $20.00 | $0.20 | $860 | 10k | 3k | 20M | - | - | - | - | - | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Qwen3.5 4B (Reasoning) |  Alibaba | 13 | - | - | - | - | - | - | - | $0.0 | $0.03 | $0.15 | - | - | - | - | - | 21 | 0.74s | 98.08s | 122.41s | - | 4.7B | 262k | Mar 2026 | - | Yes | Supports: text, image, and video | Supports: text |  | |||
| Qwen3.5 4B (Non-reasoning) | Alibaba | 11 | - | - | - | - | - | - | - | $0.0 | $0.03 | $0.15 | - | - | - | - | - | 15 | 0.87s | 0.87s | 33.31s | - | 4.7B | 262k | Mar 2026 | - | No | Supports: text, image, and video | Supports: text | | |||