Model decision surface
Compare AI models
Start with GPT-5.6 Luna and Ornith 1.5 397B, 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
GPT-5.6 Luna vs Ornith 1.5 397B
Live dataset updated 8/20/2026, 5:39:50 AM UTC
Open 1200×630 evidence receipt| Field | GPT-5.6 Luna OpenAI | Ornith 1.5 397B Ornith Ai |
|---|---|---|
| ModelCap position | #17 | #12 |
| Index score | 68.5 | 74.2 |
| Evidence | Measured6 public benchmark observations across 6 boards | Estimatedstart rank interpolated from the launch card's own comparison table against resolved catalogue peers, discounted for measured cross-lab optimism |
| Input / 1M | $0.20 | Unavailable |
| Output / 1M | $1.20 | Unavailable |
| Pricing status | fresh | unavailable |
| Context | 1M | — |
| Providers | 3 | 0 |
| Weight access | API only | Open weights |
Decision facts
- GPT-5.6 Luna is #17; Ornith 1.5 397B is #12 on the same current language board.
- Index scores are 68.5 for GPT-5.6 Luna and 74.2 for Ornith 1.5 397B.
- Evidence differs: GPT-5.6 Luna is Measured; Ornith 1.5 397B is Estimated.
- Weight access differs: GPT-5.6 Luna is none; Ornith 1.5 397B is open.
- ModelCap currently lists 3 providers for GPT-5.6 Luna and 0 for Ornith 1.5 397B.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
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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.