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 65 t/s, against Grok 4.6 (high) 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
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 4.0 · 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 Sol (max) |  OpenAI | 47 | 49 | 55 | 50 | 46 | 49 | 53 | $1.99 | $3.1 | $4.00 | $20.00 | $0.40 | $3,465 | 29k | 17k | 90M | 65 | 99.40s | 99.40s | 107.14s | 450.44s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |   | |
| Grok 4.6 (high) |  SpaceXAI | 44 | 49 | 53 | 52 | 45 | 45 | 54 | $1.86 | $1.4 | $2.00 | $6.00 | $0.50 | $2,352 | 36k | 19k | 94M | 59 | 40.56s | 40.56s | 49.01s | 607.36s | - | 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 | 55 | 33.14s | 33.14s | 42.30s | 677.63s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (xhigh) | OpenAI | 44 | 47 | 52 | 49 | 43 | 45 | 52 | $1.18 | $3.1 | $4.00 | $20.00 | $0.40 | $2,082 | 20k | 10k | 51M | 60 | 41.50s | 41.50s | 49.91s | 327.78s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.6 (medium) | SpaceXAI | 43 | 47 | 49 | 50 | - | 44 | 53 | $1.50 | $1.4 | $2.00 | $6.00 | $0.50 | $1,937 | 28k | 14k | 73M | 54 | 34.30s | 34.30s | 43.52s | 510.85s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (high) | OpenAI | 42 | 46 | 51 | 48 | 42 | 43 | 50 | $0.81 | $3.1 | $4.00 | $20.00 | $0.40 | $1,487 | 13k | 6k | 34M | 55 | 9.69s | 9.69s | 18.72s | 237.05s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (medium) | OpenAI | 39 | 43 | 49 | 45 | 39 | 40 | 48 | $0.50 | $3.1 | $4.00 | $20.00 | $0.40 | $997 | 8k | 3k | 21M | 59 | 3.64s | 3.64s | 12.06s | 131.41s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.6 (low) | SpaceXAI | 35 | 39 | 44 | 44 | - | 35 | 46 | $0.48 | $1.4 | $2.00 | $6.00 | $0.50 | $761 | 10k | 2k | 21M | 52 | 5.90s | 5.90s | 15.50s | 199.23s | - | 500k | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (low) | OpenAI | 34 | 39 | 42 | 42 | 36 | 35 | 45 | $0.26 | $3.1 | $4.00 | $20.00 | $0.40 | $637 | 4k | 837 | 13M | 58 | 3.13s | 3.13s | 11.83s | 66.57s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-5.6 Sol (Non-reasoning) | OpenAI | 28 | 30 | 33 | 31 | - | - | 32 | - | $3.1 | $4.00 | $20.00 | $0.40 | - | - | - | - | 59 | 1.23s | 1.23s | 9.77s | - | - | 1M | Jul 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |