Grok 4.6 vs GPT-5.6 Sol: Release Comparison
Comparison of the Grok 4.6 and GPT-5.6 Sol releases: 4 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 10 models.
- For intelligence, GPT-5.6 Sol scores highest: GPT-5.6 Sol (max) at 47, against Grok 4.6 (high) at 44 for Grok 4.6.
- For output speed, GPT-5.6 Sol is fastest: GPT-5.6 Sol (max) at 82 t/s, against Grok 4.6 (medium) at 59 t/s for Grok 4.6.
- For cost per task, GPT-5.6 Sol is cheapest: GPT-5.6 Sol (low) at $0.26, against Grok 4.6 (low) at $0.48 for Grok 4.6.
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 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GPT-5.6 Sol (max) |  OpenAI | 47 | 49 | 54 | 50 | 45 | 49 | 53 | $1.99 | $3.1 | $4.00 | $20.00 | $0.40 | $3,465 | 29k | 17k | 90M | 82 | 130.17s | 130.17s | 136.26s | 352.71s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |   | |
| Grok 4.6 (high) |  SpaceXAI | 44 | 49 | 52 | 52 | 45 | 45 | 54 | $1.86 | $1.4 | $2.00 | $6.00 | $0.50 | $2,352 | 36k | 19k | 94M | 59 | 42.75s | 42.75s | 51.28s | 615.50s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.6 (xhigh) | SpaceXAI | 44 | 49 | 51 | 52 | - | 45 | 55 | $2.32 | $1.4 | $2.00 | $6.00 | $0.50 | $2,830 | 38k | 20k | 97M | 56 | 51.86s | 51.86s | 60.74s | 672.32s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (xhigh) | OpenAI | 44 | 47 | 52 | 49 | 43 | 45 | 51 | $1.18 | $3.1 | $4.00 | $20.00 | $0.40 | $2,082 | 20k | 10k | 51M | 72 | 36.28s | 36.28s | 43.20s | 267.37s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.6 (medium) | SpaceXAI | 43 | 47 | 49 | 49 | - | 43 | 53 | $1.50 | $1.4 | $2.00 | $6.00 | $0.50 | $1,937 | 28k | 14k | 73M | 59 | 29.29s | 29.29s | 37.82s | 495.73s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (high) | OpenAI | 42 | 46 | 51 | 47 | 42 | 43 | 50 | $0.81 | $3.1 | $4.00 | $20.00 | $0.40 | $1,487 | 13k | 6k | 34M | 68 | 18.02s | 18.02s | 25.40s | 190.60s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (medium) | OpenAI | 39 | 43 | 48 | 45 | 39 | 40 | 48 | $0.50 | $3.1 | $4.00 | $20.00 | $0.40 | $997 | 8k | 3k | 21M | 60 | 5.07s | 5.07s | 13.36s | 130.28s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.6 (low) | SpaceXAI | 35 | 38 | 44 | 44 | - | 35 | 45 | $0.48 | $1.4 | $2.00 | $6.00 | $0.50 | $761 | 10k | 2k | 21M | 56 | 7.98s | 7.98s | 16.95s | 187.79s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (low) | OpenAI | 33 | 38 | 42 | 42 | 36 | 34 | 44 | $0.26 | $3.1 | $4.00 | $20.00 | $0.40 | $637 | 4k | 837 | 13M | 60 | 3.58s | 3.58s | 11.93s | 65.35s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (Non-reasoning) | OpenAI | 28 | 29 | 32 | 31 | - | - | 32 | - | $3.1 | $4.00 | $20.00 | $0.40 | - | - | - | - | 64 | 1.33s | 1.33s | 9.16s | - | - | 1M | Jul 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |