GPT-5.6 Terra vs Qwen3.5 2B: Release Comparison
Comparison of the GPT-5.6 Terra and Qwen3.5 2B releases: 6 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.
- For intelligence, GPT-5.6 Terra scores highest: GPT-5.6 Terra (max) at 42, against Qwen3.5 2B (Reasoning) at 7 for Qwen3.5 2B.
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indices
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2, AA-Briefcase, Terminal-Bench v4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2, AA-Briefcase, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GPT-5.6 Terra (max) |  OpenAI | 42 | 42 | 48 | 42 | 41 | 43 | 45 | $1.40 | $1.7 | $2.00 | $12.00 | $0.20 | $2,501 | 39k | 26k | 122M | 113 | 167.30s | 167.30s | 171.71s | 352.67s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |  | |
| GPT-5.6 Terra (xhigh) | OpenAI | 38 | 40 | 44 | 40 | 38 | 38 | 44 | $0.63 | $1.7 | $2.00 | $12.00 | $0.20 | $1,187 | 20k | 12k | 52M | 102 | 21.09s | 21.09s | 25.98s | 214.07s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |  | |
| GPT-5.6 Terra (high) | OpenAI | 34 | 38 | 40 | 37 | 34 | 35 | 42 | $0.34 | $1.7 | $2.00 | $12.00 | $0.20 | $768 | 11k | 5k | 33M | 92 | 2.89s | 2.89s | 8.31s | 124.39s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Terra (medium) | OpenAI | 30 | 32 | 35 | 34 | 31 | 31 | 37 | $0.18 | $1.7 | $2.00 | $12.00 | $0.20 | $447 | 5k | 2k | 17M | 90 | 1.83s | 1.83s | 7.37s | 59.38s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Terra (low) | OpenAI | 28 | 30 | 32 | 31 | 28 | 28 | 35 | $0.14 | $1.7 | $2.00 | $12.00 | $0.20 | $350 | 4k | 1k | 11M | 92 | 1.65s | 1.65s | 7.11s | 42.30s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Terra (Non-reasoning) | OpenAI | 22 | - | - | - | - | - | 24 | - | $1.7 | $2.00 | $12.00 | $0.20 | - | - | - | - | 92 | 0.87s | 0.87s | 6.33s | - | - | 1M | Jul 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |
| Qwen3.5 2B (Reasoning) |  Alibaba | 7 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.3B | 262k | Mar 2026 | - | Yes | Supports: text and image | Supports: text | - | |||
| Qwen3.5 2B (Non-reasoning) | Alibaba | 6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.3B | 262k | Mar 2026 | - | No | Supports: text, image, and video | Supports: text | - | |||