GPT-6 Sol vs GPT-5.6 Sol: Release Comparison
Comparison of the GPT-6 Sol and GPT-5.6 Sol releases: 6 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 12 models.
- For intelligence, GPT-6 Sol scores highest: GPT-6 Sol (max) at 48, against GPT-5.6 Sol (max) at 47 for GPT-5.6 Sol.
- For output speed, GPT-6 Sol is fastest: GPT-6 Sol (high) at 138 t/s, against GPT-5.6 Sol (max) at 73 t/s for GPT-5.6 Sol.
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-6 Sol (max) |  OpenAI | 48 | 48 | 52 | 51 | - | 49 | 54 | - | $1.5 | $2.00 | $10.00 | $0.20 | - | 31k | 21k | 77M | 104 | 107.18s | 107.18s | 111.97s | 290.77s | - | 872k | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| 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 | 73 | 130.17s | 130.17s | 137.05s | 398.87s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |   | |
| GPT-6 Sol (xhigh) | OpenAI | 44 | 46 | 51 | 49 | - | 45 | 52 | - | $1.5 | $2.00 | $10.00 | $0.20 | - | 16k | 9k | 40M | 136 | 44.76s | 44.76s | 48.43s | 127.71s | - | 872k | Sep 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 | 69 | 35.55s | 35.55s | 42.81s | 287.80s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Sol (high) | OpenAI | 43 | 46 | 50 | 48 | - | 43 | 52 | - | $1.5 | $2.00 | $10.00 | $0.20 | - | 10k | 5k | 25M | 138 | 7.57s | 7.57s | 11.18s | 76.12s | - | 872k | Sep 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 | 64 | 17.49s | 17.49s | 25.28s | 204.81s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Sol (medium) | OpenAI | 40 | 43 | 47 | 47 | - | 40 | 49 | - | $1.5 | $2.00 | $10.00 | $0.20 | - | 6k | 2k | 16M | 114 | 1.96s | 1.96s | 6.34s | 59.99s | - | 872k | Sep 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 | 58 | 5.07s | 5.07s | 13.67s | 133.74s | - | 1M | Jul 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Sol (low) | OpenAI | 34 | 38 | 41 | 42 | - | 35 | 44 | - | $1.5 | $2.00 | $10.00 | $0.20 | - | 3k | 697 | 9M | 124 | 1.44s | 1.44s | 5.47s | 27.62s | - | 872k | Sep 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 | 58 | 3.71s | 3.71s | 12.31s | 68.60s | - | 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 | 1.22s | 1.22s | 9.08s | - | - | 1M | Jul 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Sol (Non-reasoning) | OpenAI | 28 | 32 | 35 | 32 | - | 29 | 34 | - | $1.5 | $2.00 | $10.00 | $0.20 | - | 5k | 0 | 8M | 103 | 0.89s | 0.89s | 5.73s | 47.39s | - | 872k | Sep 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |