GPT-6.1 Sol vs Claude Fable 5.1: Release Comparison
Comparison of the GPT-6.1 Sol and Claude Fable 5.1 releases: 5 and 5 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 10 models.
- For intelligence, Claude Fable 5.1 scores highest: Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) at 53, against GPT-6.1 Sol (max) at 52 for GPT-6.1 Sol.
- For output speed, GPT-6.1 Sol is fastest: GPT-6.1 Sol (low) at 74 t/s, against Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) at 69 t/s for Claude Fable 5.1.
- For cost per task, GPT-6.1 Sol is cheapest: GPT-6.1 Sol (low) at $0.13, against Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback) at $2.37 for Claude Fable 5.1.
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 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) |  Anthropic | 53 | 56 | 60 | 60 | 58 | 56 | 63 | $7.63 | $7.2 | $10.00 | $50.00 | $0.25 | $13,129 | 78k | 47k | 188M | 69 | 285.98s | 285.98s | 293.20s | 722.62s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | Anthropic | 53 | 56 | 58 | 61 | - | 57 | 62 | $5.98 | $7.2 | $10.00 | $50.00 | $0.25 | $9,063 | 61k | 34k | 121M | 57 | 104.51s | 104.51s | 113.30s | 662.21s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6.1 Sol (max) |  OpenAI | 52 | 54 | 57 | 58 | - | 54 | 59 | $0.72 | $1.5 | $2.00 | $10.00 | $0.10 | $1,082 | 38k | 25k | 67M | 67 | 267.64s | 267.64s | 275.12s | 568.66s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback) | Anthropic | 51 | 54 | 56 | 58 | - | 54 | 60 | $3.91 | $7.2 | $10.00 | $50.00 | $0.25 | $5,242 | 38k | 19k | 62M | 52 | 26.01s | 26.01s | 35.59s | 441.92s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6.1 Sol (xhigh) | OpenAI | 51 | 53 | 56 | 57 | - | 53 | 58 | $0.39 | $1.5 | $2.00 | $10.00 | $0.10 | $662 | 18k | 9k | 36M | 64 | 68.65s | 68.65s | 76.51s | 271.10s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6.1 Sol (high) | OpenAI | 50 | 53 | 55 | 56 | - | 52 | 58 | $0.32 | $1.5 | $2.00 | $10.00 | $0.10 | $521 | 13k | 6k | 25M | 66 | 57.26s | 57.26s | 64.81s | 202.65s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Fable 5.1 (Adaptive Reasoning, Medium Effort, Default Fallback) | Anthropic | 49 | 51 | 54 | 57 | - | 51 | 58 | $2.98 | $7.2 | $10.00 | $50.00 | $0.25 | $3,983 | 28k | 12k | 44M | 50 | 8.00s | 8.00s | 17.90s | 331.56s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6.1 Sol (medium) | OpenAI | 48 | 50 | 53 | 54 | - | 50 | 56 | $0.21 | $1.5 | $2.00 | $10.00 | $0.10 | $361 | 8k | 3k | 15M | 62 | 5.29s | 5.29s | 13.36s | 126.91s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback) | Anthropic | 47 | 49 | 51 | 53 | - | 49 | 55 | $2.37 | $7.2 | $10.00 | $50.00 | $0.25 | $3,158 | 22k | 8k | 33M | 48 | 4.83s | 4.83s | 15.28s | 271.82s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6.1 Sol (low) | OpenAI | 42 | 45 | 46 | 50 | - | 44 | 52 | $0.13 | $1.5 | $2.00 | $10.00 | $0.10 | $250 | 4k | 1k | 9M | 74 | 1.84s | 1.84s | 8.56s | 54.07s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |