GLM-5.3 vs GPT-5.6 Terra: Release Comparison
Comparison of the GLM-5.3 and GPT-5.6 Terra releases: 2 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.
- For intelligence, GLM-5.3 scores highest: GLM-5.3 (max) at 45, against GPT-5.6 Terra (max) at 42 for GPT-5.6 Terra.
- For output speed, GPT-5.6 Terra is fastest: GPT-5.6 Terra (max) at 87 t/s, against GLM-5.3 (low) at 75 t/s for GLM-5.3.
- For cost per task, GPT-5.6 Terra is cheapest: GPT-5.6 Terra (Non-reasoning) at $0.14, against GLM-5.3 (max) at $2.01 for GLM-5.3.
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 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GLM-5.3 (max) |  Z AI | 45 | 45 | 48 | 42 | 47 | 47 | 51 | $2.01 | $0.9 | $1.40 | $4.40 | $0.26 | $2,503 | 71k | 49k | 209M | 59 | 3.46s | 37.15s | 45.58s | 864.40s | 753B 40B active at inference time | 1M | Aug 2026 | - | Yes | Supports: text | Supports: text |   +17 | |||
| GPT-5.6 Terra (max) |  OpenAI | 42 | 41 | 47 | 41 | 40 | 43 | 45 | $1.40 | $1.7 | $2.00 | $12.00 | $0.20 | $2,501 | 39k | 26k | 122M | 87 | 211.09s | 211.09s | 216.85s | 446.03s | - | 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 | 83 | 30.97s | 30.97s | 36.99s | 249.31s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |  | |
| GLM-5.3 (low) | Z AI | 34 | 35 | 39 | 33 | - | 38 | 41 | $3.66 | $1.7 | $1.40 | $4.40 | - | $3,294 | 30k | 21k | 88M | 75 | 2.91s | 29.56s | 36.22s | 393.41s | 753B 40B active at inference time | 1M | Aug 2026 | - | Yes | Supports: text | Supports: text | | |||
| GPT-5.6 Terra (high) | OpenAI | 34 | 37 | 40 | 37 | 34 | 34 | 42 | $0.34 | $1.7 | $2.00 | $12.00 | $0.20 | $768 | 11k | 5k | 33M | 76 | 3.47s | 3.47s | 10.03s | 142.89s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Terra (medium) | OpenAI | 30 | 32 | 34 | 34 | 31 | 31 | 37 | $0.18 | $1.7 | $2.00 | $12.00 | $0.20 | $447 | 5k | 2k | 17M | 82 | 2.14s | 2.14s | 8.25s | 66.52s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Terra (low) | OpenAI | 27 | 30 | 31 | 31 | 27 | 28 | 34 | $0.14 | $1.7 | $2.00 | $12.00 | $0.20 | $350 | 4k | 1k | 11M | 77 | 1.70s | 1.70s | 8.24s | 49.91s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Terra (Non-reasoning) | OpenAI | 21 | 21 | 23 | 22 | - | 21 | 24 | $0.14 | $1.7 | $2.00 | $12.00 | $0.20 | $256 | 3k | 0 | 6M | 82 | 0.94s | 0.94s | 7.03s | 38.01s | - | 1M | Jul 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |