Model decision surface
Compare AI models
Start with GPT-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-6 Luna vs Ornith 1.5 397B
Live dataset updated 9/22/2026, 10:37:09 PM UTC
Open 1200×630 evidence receipt| Field | GPT-6 Luna OpenAI | Ornith 1.5 397B Ornith Ai |
|---|---|---|
| ModelCap position | #25 | #24 |
| Index score | 78.6 | 79.4 |
| Evidence | Measured3 public benchmark observations across 3 boards | Estimatedglobal-corpus-prior over 209 held-out anchors (10%); launch card against 2 resolved peers on 11 rows (90%); exceeds every named peer on 3 of 11 rows; optimism haircut 0 from cross-lab-probe; shrunk 2.5 toward the measured corpus |
| Input / 1M | $0.10 | Unavailable |
| Output / 1M | $0.50 | Unavailable |
| Pricing status | fresh | unavailable |
| Context | 1M | — |
| Providers | 2 | 0 |
| Weight access | API only | Open weights |
Decision facts
- GPT-6 Luna is #25; Ornith 1.5 397B is #24 on the same current language board.
- Index scores are 78.6 for GPT-6 Luna and 79.4 for Ornith 1.5 397B. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: GPT-6 Luna is Measured; Ornith 1.5 397B is Estimated.
- Weight access differs: GPT-6 Luna is none; Ornith 1.5 397B is open.
- ModelCap currently lists 2 providers for GPT-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.