Model decision surface
Compare AI models
Start with K2 Horizon 375B A23B and GPT-5.4 Mini, 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
K2 Horizon 375B A23B vs GPT-5.4 Mini
Live dataset updated 9/10/2026, 1:00:55 AM UTC
Open 1200×630 evidence receipt| Field | GPT-5.4 Mini OpenAI | |
|---|---|---|
| ModelCap position | #34 | #32 |
| Index score | 66.5 | 66.8 |
| Evidence | Estimatedglobal-corpus-prior over 183 held-out anchors (24%); launch card against 7 resolved peers on 11 rows (76%); optimism haircut 0 from cross-lab-probe; shrunk 4.1 toward the measured corpus | Measured4 public benchmark observations across 4 boards |
| Input / 1M | Unavailable | $0.75 |
| Output / 1M | Unavailable | $4.50 |
| Pricing status | unavailable | fresh |
| Context | — | 400K |
| Providers | 0 | 2 |
| Weight access | Open weights | API only |
Decision facts
- K2 Horizon 375B A23B is #34; GPT-5.4 Mini is #32 on the same current language board.
- Index scores are 66.5 for K2 Horizon 375B A23B and 66.8 for GPT-5.4 Mini. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: K2 Horizon 375B A23B is Estimated; GPT-5.4 Mini is Measured.
- Weight access differs: K2 Horizon 375B A23B is open; GPT-5.4 Mini is none.
- ModelCap currently lists 0 providers for K2 Horizon 375B A23B and 2 for GPT-5.4 Mini.
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
- Muse Spark 1.3 vs GPT-6 Astra#2 vs #1 on the ModelCap Index
- Claude Fable 5.1 vs GPT-6 Astra#3 vs #1 on the ModelCap Index
- Claude Fable 5.1 vs Muse Spark 1.3#3 vs #2 on the ModelCap Index
- Claude Opus 5 vs GPT-6 Astra#4 vs #1 on the ModelCap Index
- Claude Opus 5 vs Muse Spark 1.3#4 vs #2 on the ModelCap Index
- Claude Fable 5.1 vs Claude Opus 5#3 vs #4 on the ModelCap Index
- GPT-5.6 Sol vs GPT-6 Astra#5 vs #1 on the ModelCap Index
- Muse Spark 1.3 vs GPT-5.6 Sol#2 vs #5 on the ModelCap Index
- Claude Fable 5.1 vs GPT-5.6 Sol#3 vs #5 on the ModelCap Index
- Claude Opus 5 vs GPT-5.6 Sol#4 vs #5 on the ModelCap Index
- Kimi K3 vs GPT-6 Astra#6 vs #1 on the ModelCap Index
- Muse Spark 1.3 vs Kimi K3#2 vs #6 on the ModelCap Index
- Claude Fable 5.1 vs Kimi K3#3 vs #6 on the ModelCap Index
- Claude Opus 5 vs Kimi K3#4 vs #6 on the ModelCap Index
- Kimi K3 vs GPT-5.6 Sol#6 vs #5 on the ModelCap Index
- Gemini 3.8 Flash vs GPT-6 Astra#7 vs #1 on the ModelCap Index
- Gemini 3.8 Flash vs Muse Spark 1.3#7 vs #2 on the ModelCap Index
- Claude Fable 5.1 vs Gemini 3.8 Flash#3 vs #7 on the ModelCap Index
- Claude Opus 5 vs Gemini 3.8 Flash#4 vs #7 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 Kimi K3#7 vs #6 on the ModelCap Index
- GPT-6 Astra vs GLM 5.3#1 vs #8 on the ModelCap Index
- Muse Spark 1.3 vs GLM 5.3#2 vs #8 on the ModelCap Index
- Claude Fable 5.1 vs GLM 5.3#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.