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- Claude Fable 5.1 vs. GPT-6 Sol
AnthropicOpenAILLM matchup
Claude Fable 5.1vs.GPT-6 Sol
Which one is better?
Claude Fable 5.1 performs better than GPT-6 Sol, but costs 5 times as much.
Claude Fable 5.1
Rank 3
GPT-6 Sol
Rank 13
Claude Fable 5.1
GPT-6 Sol
Claude Fable 5.1
GPT-6 Sol
Claude Fable 5.1
Rank 18 of 785
GPT-6 Sol
Rank 3 of 785
Above 272,000 tokens of context, GPT-6 Sol costs more: $4 input and $15 output per 1M tokens.
Choose Claude Fable 5.1 for
Choose GPT-6 Sol for
No clear advantage
On this page
Where is the difference?
Strengths at a glance
Fable 5.1GPT-6 SolMedian of all ranked models
95 % range: Fable 5.1 117.1 to 128.5, GPT-6 Sol 112.2 to 117.6.
The same values and verdicts as the bars below. In the close-up the net starts at 95 points, just below the weaker model's lowest value; the reference group average is 100.
Fable 5.1 is ahead in 9 of 10 areas, GPT-6 Sol in none.
Fable 5.1 ahead: 9level: 1
Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.
Show 3 more areas that do not count toward the overall index
Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.
Claude Fable 5.1 vs. GPT-6 Sol at the same effort
Both models measured at the same reasoning efforts. This shows whether a lead comes from the model or only from more compute.
| Effort | Fable 5.1 | GPT-6 Sol | Gap | Verdict | Test series |
|---|---|---|---|---|---|
| max | 123.8 | 110.5 | 7.2 | Fable 5.1 slightly ahead | 11 |
| Overall index (max vs. max) | 123.8 | 110.5 | 13.3 | Fable 5.1 ahead |
Gap and verdict compare only the Artificial Analysis test series in which both models are measured at that effort. Tied below 3 points, ahead only beyond two standard errors. The single values rest on all test series of each model, so their difference can deviate from the gap.
Which model for which task?
Everyday tasks, translated from the area values above. Each row names the values it rests on.
See for yourself: same task, one attempt
The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.
Claude Fable 5.1

Sep 7, 2026 · 27 s · $0.11
Test details
- Run date
- Sep 7, 2026
- API provider
- openrouter
- Requested API model
- anthropic/claude-fable-5.1
- Reasoning setting
- high
- Token limit including reasoning
- 8,192 tokens
- Output tokens
- 2,198 tokens
- Cost of the attempt
- $0.1102
- Response time
- 27 s
- API model reported in response
- anthropic/claude-fable-5.1
- Pinned endpoint
- Anthropic | anthropic/claude-fable-5.1-20260831
- Temperature
- Provider default
- Test protocol
- community-visual-tests-v1
- Technical checks
- Passed, not a quality rating
Visually reviewed. This individual test does not establish overall model quality.
GPT-6 Sol

Oct 1, 2026 · 80 s · $0.04
Test details
- Run date
- Oct 1, 2026
- API provider
- openrouter
- Requested API model
- openai/gpt-6-sol
- Reasoning setting
- high
- Token limit including reasoning
- 8,192 tokens
- Output tokens
- 4,389 tokens
- Cost of the attempt
- $0.0439
- Response time
- 80.5 s
- API model reported in response
- openai/gpt-6-sol
- Pinned endpoint
- OpenAI | openai/gpt-6-sol-20260922
- Temperature
- Provider default
- Test protocol
- community-visual-tests-v1
- Technical checks
- Passed, not a quality rating
Visually reviewed. This individual test does not establish overall model quality.
SVG short test
SVG short test
One SVG task with the same fixed settings for every model, without hidden thinking.
Prompt
Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.
Claude Fable 5.1
Unavailable in this round
GPT-6 Sol
Unavailable in this round
Claude Fable 5.1 and GPT-6 Sol in the overall index
Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.
Overall index (Gradually Meta-Score v4)
20 of 92 models
4 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.
Popularity compared
How often the models are searched for, used and mentioned, on a scale from 0 to 100.
GPT-6 Sol is more popular than Claude Fable 5.1: 73 to 64 out of 100.
Over time
Weekly values from October 18, 2026 to November 7, 2026
Claude Fable 5.1GPT-6 Sol
All data side by side
The better value is bold. For the overall index only when the gap is clear.
| Metric | Claude Fable 5.1 | GPT-6 Sol |
|---|---|---|
| Intelligence | ||
| Overall indexpoints, 100 = reference group average, higher is better | 123.8 | 110.5 |
| Rank | Rank 3 of 92 | Rank 13 of 92 |
| Price per 1M tokens | ||
| Inputwhat you send | $10 | $2above 272,000 tokens: $4 |
| Outputwhat the model writes | $50 | $10above 272,000 tokens: $15 |
| Cost per task (own tests)average of 3 original-protocol tasks both models passed (SVG short test not included) | $0.19 | $0.044 |
| Speed | ||
| Tokens per second | 88 | 111 |
| Popularity | ||
| Popularitysearch, usage and mentions, 0 to 100 | 64Rank 18 of 785 | 73Rank 3 of 785 |
| Technical | ||
| Context windowhow much text the model reads at once | 1 M tokens≈ 1,500 A4 pages | 1.05 M tokens≈ 1,580 A4 pages |
| Knowledge cutoff | June 2026 | Apr 20, 2026 |
| Released | Sep 1, 2026 | Sep 22, 2026 |
| Availability | Active | Active |
| Open weights | no | no |
Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis
Is there a better choice?
Overall index 119.2, rank 7$2 input and $10 output per 1M tokens
Fable 5.1 vs. GPT-6.1 SolOverall index 122.8, rank 4$2 input and $10 output per 1M tokens
Fable 5.1 vs. Claude Sonnet 5.5Overall index 126.1, rank 1$4 input and $20 output per 1M tokens
Fable 5.1 vs. Claude Opus 5.5Shared benchmarks
Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.
A: Claude Fable 5.1B: GPT-6 Sol
Show 54 more benchmarks
More comparisons
Compare Claude Fable 5.1 and GPT-6 Sol with the models people compare them with most often.
Compare another matchup
Predecessor and successor
The most popular comparisons
- 1Claude Opus 5.5 vs. Claude Fable 5.1
- 2GPT-6 Sol vs. GPT-5.6 Sol
- 3GPT-6 Sol vs. DeepSeek-V4.1-Flash
- 4GPT-6 Sol vs. Gemini 3.8 Flash
- 5Claude Sonnet 5.5 vs. Claude Fable 5.1
- 6GPT-6 Sol vs. GPT-5.6 Terra
- 7GPT-6 Astra vs. GPT-6 Sol
- 8GPT-6 Sol vs. GLM-5.3-Flash
- 9Claude Sonnet 5.5 vs. GPT-6 Sol
Show all 50 comparisons
- 10GPT-6 Sol vs. Gemini 3.1 Pro Preview
- 11Claude Opus 4.8 vs. GPT-6 Sol
- 12Claude Fable 5.1 vs. GPT-6 Astra
- 13GPT-6 Sol vs. GPT-5.4
- 14GPT-6 Sol vs. DeepSeek V4.1 Flash 1017
- 15GPT-6 Sol vs. Qwen 3.8 27B
- 16Claude Fable 5.1 vs. Grok 4.7
- 17GPT-6 Sol vs. GPT-6 Luna
- 18GPT-6 Sol vs. Kimi K3.1 Pro
- 19Claude Sonnet 4.6 vs. GPT-6 Sol
- 20Claude Fable 5.1 vs. GPT-5.6 Sol
- 21GPT-6 Sol vs. Grok 4.7
- 22Claude Haiku 5.5 vs. GPT-6 Sol
- 23Claude Opus 5.5 vs. GPT-6 Sol
- 24GPT-6 Sol vs. Qwen 3.8 Max 0902
- 25Claude Sonnet 5 vs. GPT-6 Sol
- 26GPT-6 Sol vs. Kimi K3
- 27GPT-6 Sol vs. DeepSeek-V4-Pro
- 28GPT-6 Sol vs. GPT-5.6 Luna
- 29Claude Opus 5 vs. GPT-6 Sol
- 30Claude Fable 5.1 vs. DeepSeek V4.1 Flash 1017
- 31Claude Fable 5.1 vs. GPT-6.1 Sol
- 32Claude Fable 5.1 vs. GLM-5.3-Flash
- 33Claude Fable 5.1 vs. GPT-6 Luna
- 34Claude Fable 5.1 vs. DeepSeek-V4.1-Flash
- 35GPT-6 Sol vs. Mistral Large 4
- 36GPT-6 Sol vs. Gemini 4 Argon
- 37Claude Fable 5.1 vs. Mistral Large 4
- 38GPT-6 Sol vs. Gemini 3.6 Flash
- 39Claude Opus 4.6 vs. GPT-6 Sol
- 40Claude Fable 5.1 vs. Claude Opus 4.8
- 41GPT-6 Sol vs. Muse Wonder
- 42Claude Fable 5.1 vs. Claude Opus 4.6
- 43Claude Haiku 4.5 vs. GPT-6 Sol
- 44GPT-6 Sol vs. GPT-5.5
- 45GPT-6.1 Terra vs. GPT-6 Sol
- 46Claude Fable 5.1 vs. Gemini 4 Argon
- 47Claude Fable 5.1 vs. Gemini 4 Carbon
- 48GPT-6 Sol vs. Gemini 4 Carbon
- 49Claude Fable 5.1 vs. Kimi K3.1 Pro
- 50Claude Fable 5.1 vs. Muse Wonder