Claude Sonnet 5.5 vs Qwen3.8 27B: Release Comparison
Comparison of the Claude Sonnet 5.5 and Qwen3.8 27B releases: 5 and 4 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 9 models.
- For intelligence, Claude Sonnet 5.5 scores highest: Claude Sonnet 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) at 56, against Qwen3.8 27B (xhigh) at 34 for Qwen3.8 27B.
- For output speed, Claude Sonnet 5.5 is fastest: Claude Sonnet 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) at 171 t/s, against Qwen3.8 27B (Non-reasoning) at 53 t/s for Qwen3.8 27B.
- For cost per task, Claude Sonnet 5.5 is cheapest: Claude Sonnet 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) at $0.41, against Qwen3.8 27B (xhigh) at $1.01 for Qwen3.8 27B.
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 Sonnet 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) |  Anthropic | 56 | 57 | 60 | 56 | - | 58 | 61 | $7.60 | $1.5 | $2.00 | $10.00 | $0.20 | $8,977 | 193k | 142k | 411M | - | - | - | - | - | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |   | |
| Claude Sonnet 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | Anthropic | 52 | 52 | 56 | 52 | - | 54 | 56 | $2.74 | $1.5 | $2.00 | $10.00 | $0.20 | $2,738 | 74k | 48k | 104M | 171 | 135.07s | 135.07s | 138.00s | 329.29s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Sonnet 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | Anthropic | 47 | 47 | 52 | 49 | - | 48 | 52 | $1.08 | $1.5 | $2.00 | $10.00 | $0.20 | $1,176 | 34k | 18k | 50M | 97 | 10.97s | 10.97s | 16.12s | 187.78s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Sonnet 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | Anthropic | 41 | 41 | 45 | 44 | - | 42 | 47 | $0.59 | $1.5 | $2.00 | $10.00 | $0.20 | $701 | 19k | 8k | 29M | 115 | 3.79s | 3.79s | 8.16s | 108.81s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Sonnet 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | Anthropic | 36 | 37 | 41 | 40 | - | 38 | 44 | $0.41 | $1.5 | $2.00 | $10.00 | $0.20 | $544 | 14k | 5k | 23M | 93 | 1.17s | 1.17s | 6.57s | 95.30s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Qwen3.8 27B (xhigh) |  Alibaba | 34 | 34 | 37 | 35 | 34 | 33 | 43 | $1.01 | $0.5 | $0.50 | $3.00 | $0.10 | $1,336 | 67k | 48k | 198M | 45 | 3.86s | 48.29s | 59.40s | 1251.53s | 27B | 256k | Aug 2026 | - | Yes | Supports: text, image, and video | Supports: text |   +4 | |||
| Qwen3.8 27B (medium) | Alibaba | 28 | 28 | 34 | 27 | - | 25 | 31 | $1.13 | $0.5 | $0.50 | $3.00 | $0.10 | $1,165 | 52k | 32k | 113M | 51 | 3.86s | 43.00s | 52.79s | 1002.22s | 27B | 256k | Aug 2026 | - | Yes | Supports: text, image, and video | Supports: text |  | |||
| Qwen3.8 27B (low) | Alibaba | 26 | 27 | 29 | 28 | - | 24 | 32 | $1.05 | $0.5 | $0.50 | $3.00 | $0.10 | $1,060 | 45k | 26k | 82M | 51 | 3.82s | 42.94s | 52.72s | 887.90s | 27B | 256k | Aug 2026 | - | Yes | Supports: text, image, and video | Supports: text | | |||
| Qwen3.8 27B (Non-reasoning) | Alibaba | 20 | 19 | 16 | 22 | - | 22 | 30 | $2.49 | $0.5 | $0.50 | $3.00 | $0.10 | $2,022 | 30k | 0 | 43M | 53 | 3.83s | 3.83s | 13.32s | 559.22s | 27B | 256k | Aug 2026 | - | No | Supports: text, image, and video | Supports: text |   | |||