Model decision surface
Compare AI models
Start with Claude Fable 5.1 and DeepSeek V4.1 Flash, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.
Current public data
Claude Fable 5.1 vs DeepSeek V4.1 Flash
Live dataset updated 9/13/2026, 2:40:29 PM UTC
Open 1200×630 evidence receipt| Field | Claude Fable 5.1 Anthropic | DeepSeek V4.1 Flash DeepSeek |
|---|---|---|
| ModelCap position | #1 | #16 |
| Index score | 87.1 | 76.5 |
| Evidence | Measured5 public benchmark observations across 5 boards | Measured1 public benchmark observation across 1 board |
| Input / 1M | $10.00 | $0.15 |
| Output / 1M | $50.00 | $0.60 |
| Pricing status | fresh | fresh |
| Context | 1M | 1M |
| Providers | 4 | 13 |
| Weight access | API only | Open weights |
Decision facts
- Claude Fable 5.1 is #1; DeepSeek V4.1 Flash is #16 on the same current language board.
- Index scores are 87.1 for Claude Fable 5.1 and 76.5 for DeepSeek V4.1 Flash. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Both positions use Measured evidence.
- Listed output price per 1M tokens is $50.00 for Claude Fable 5.1 and $0.60 for DeepSeek V4.1 Flash. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $45.00 for Claude Fable 5.1 versus $0.60 for DeepSeek V4.1 Flash. DeepSeek V4.1 Flash costs 98.7% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
- Published context is 1,000,000 tokens for Claude Fable 5.1 and 1,048,576 for DeepSeek V4.1 Flash.
- Weight access differs: Claude Fable 5.1 is none; DeepSeek V4.1 Flash is open.
- ModelCap currently lists 4 providers for Claude Fable 5.1 and 13 for DeepSeek V4.1 Flash.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
Popular comparisons
- Claude Fable 5.1 vs Muse Spark 1.3#1 vs #2 on the ModelCap Index
- Claude Fable 5.1 vs Claude Opus 5#1 vs #3 on the ModelCap Index
- Claude Opus 5 vs Muse Spark 1.3#3 vs #2 on the ModelCap Index
- Claude Fable 5.1 vs GPT-6 Astra#1 vs #4 on the ModelCap Index
- Muse Spark 1.3 vs GPT-6 Astra#2 vs #4 on the ModelCap Index
- Claude Opus 5 vs GPT-6 Astra#3 vs #4 on the ModelCap Index
- Claude Fable 5.1 vs GPT-5.6 Sol#1 vs #5 on the ModelCap Index
- Muse Spark 1.3 vs GPT-5.6 Sol#2 vs #5 on the ModelCap Index
- Claude Opus 5 vs GPT-5.6 Sol#3 vs #5 on the ModelCap Index
- GPT-5.6 Sol vs GPT-6 Astra#5 vs #4 on the ModelCap Index
- Claude Fable 5.1 vs GLM 5.3#1 vs #6 on the ModelCap Index
- Muse Spark 1.3 vs GLM 5.3#2 vs #6 on the ModelCap Index
- Claude Opus 5 vs GLM 5.3#3 vs #6 on the ModelCap Index
- GPT-6 Astra vs GLM 5.3#4 vs #6 on the ModelCap Index
- GPT-5.6 Sol vs GLM 5.3#5 vs #6 on the ModelCap Index
- Claude Fable 5.1 vs Gemini 3.8 Flash#1 vs #7 on the ModelCap Index
- Gemini 3.8 Flash vs Muse Spark 1.3#7 vs #2 on the ModelCap Index
- Claude Opus 5 vs Gemini 3.8 Flash#3 vs #7 on the ModelCap Index
- Gemini 3.8 Flash vs GPT-6 Astra#7 vs #4 on the ModelCap Index
- Gemini 3.8 Flash vs GPT-5.6 Sol#7 vs #5 on the ModelCap Index
- Gemini 3.8 Flash vs GLM 5.3#7 vs #6 on the ModelCap Index
- Claude Fable 5.1 vs Kimi K3#1 vs #8 on the ModelCap Index
- Muse Spark 1.3 vs Kimi K3#2 vs #8 on the ModelCap Index
- Claude Opus 5 vs Kimi K3#3 vs #8 on the ModelCap Index
Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.