Model decision surface
Compare AI models
Start with Claude Fable 5 and GPT-5.3-Codex, 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 vs GPT-5.3-Codex
Live dataset updated 8/17/2026, 11:13:20 PM UTC
Open 1200×630 evidence receipt| Field | Claude Fable 5 Anthropic | GPT-5.3-Codex OpenAI |
|---|---|---|
| ModelCap position | #1 | #20 |
| Index score | 85.5 | 66.4 |
| Evidence | Measured5 public benchmark observations across 5 boards | Measured1 public benchmark observation across 1 board |
| Input / 1M | $10.00 | $1.75 |
| Output / 1M | $50.00 | $14.00 |
| Pricing status | fresh | fresh |
| Context | 1M | 400K |
| Providers | 5 | 2 |
| Weight access | API only | API only |
Decision facts
- Claude Fable 5 is #1; GPT-5.3-Codex is #20 on the same current language board.
- Index scores are 85.5 for Claude Fable 5 and 66.4 for GPT-5.3-Codex.
- Both positions use Measured evidence.
- Listed output price per 1M tokens is $50.00 for Claude Fable 5 and $14.00 for GPT-5.3-Codex.
- Published context is 1,000,000 tokens for Claude Fable 5 and 400,000 for GPT-5.3-Codex.
- ModelCap currently lists 5 providers for Claude Fable 5 and 2 for GPT-5.3-Codex.
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 vs Claude Opus 5#1 vs #2 on the ModelCap Index
- Claude Fable 5 vs Kimi K3#1 vs #3 on the ModelCap Index
- Claude Opus 5 vs Kimi K3#2 vs #3 on the ModelCap Index
- Claude Fable 5 vs Muse Spark 1.2#1 vs #4 on the ModelCap Index
- Claude Opus 5 vs Muse Spark 1.2#2 vs #4 on the ModelCap Index
- Muse Spark 1.2 vs Kimi K3#4 vs #3 on the ModelCap Index
- Claude Fable 5 vs Qwen3.8 Max#1 vs #5 on the ModelCap Index
- Claude Opus 5 vs Qwen3.8 Max#2 vs #5 on the ModelCap Index
- Kimi K3 vs Qwen3.8 Max#3 vs #5 on the ModelCap Index
- Muse Spark 1.2 vs Qwen3.8 Max#4 vs #5 on the ModelCap Index
- Claude Fable 5 vs GPT-5.6 Sol#1 vs #6 on the ModelCap Index
- Claude Opus 5 vs GPT-5.6 Sol#2 vs #6 on the ModelCap Index
- Kimi K3 vs GPT-5.6 Sol#3 vs #6 on the ModelCap Index
- Muse Spark 1.2 vs GPT-5.6 Sol#4 vs #6 on the ModelCap Index
- GPT-5.6 Sol vs Qwen3.8 Max#6 vs #5 on the ModelCap Index
- Claude Fable 5 vs Gemini 3.1 Pro Preview#1 vs #7 on the ModelCap Index
- Claude Opus 5 vs Gemini 3.1 Pro Preview#2 vs #7 on the ModelCap Index
- Gemini 3.1 Pro Preview vs Kimi K3#7 vs #3 on the ModelCap Index
- Gemini 3.1 Pro Preview vs Muse Spark 1.2#7 vs #4 on the ModelCap Index
- Gemini 3.1 Pro Preview vs Qwen3.8 Max#7 vs #5 on the ModelCap Index
- Gemini 3.1 Pro Preview vs GPT-5.6 Sol#7 vs #6 on the ModelCap Index
- Claude Fable 5 vs GPT-5.5#1 vs #8 on the ModelCap Index
- Claude Opus 5 vs GPT-5.5#2 vs #8 on the ModelCap Index
- Kimi K3 vs GPT-5.5#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.