QPI 15.14 — +14.09% week over week
The Qubax AI Model Price Index (QPI) shows Qubax's blended price (75% input / 25% output) as a percentage of OpenRouter's price for a fixed basket of flagship AI models — 100 is parity, below 100 is cheaper. This week the index moved from 13.27 to 15.14 (+14.09%), meaning the median basket model now costs 85% less on Qubax than on OpenRouter.
Average discount vs OpenRouter across the basket: 66%.
Biggest price drops
| Model | Last week | This week | Change | Qubax discount |
|---|---|---|---|---|
| Gemini 3.1 Pro Preview | $1.41 | $0.344 | -75.57% | 85% |
| GLM 5.2 | $0.707 | $0.236 | -66.67% | 50% |
| DeepSeek R1 | $0.897 | $0.863 | -3.85% | 25% |
| GPT-4o | $0.168 | $0.168 | +0.00% | 96% |
| GPT-5.3 Codex | $0.313 | $0.314 | +0.43% | 93% |
Biggest price increases
| Model | Last week | This week | Change | Qubax discount |
|---|---|---|---|---|
| Qwen 3 235B A22B Instruct 2507 | $0.0023 | $0.0068 | +197.27% | 96% |
| GPT-5.2 | $0.181 | $0.361 | +99.38% | 85% |
| Claude Opus 4.8 | $2.30 | $3.72 | +61.47% | 63% |
| Claude Sonnet 4.5 | $1.95 | $2.90 | +48.88% | 52% |
| DeepSeek V4 Flash | $0.031 | $0.036 | +16.64% | -6% |
How to read this
- QPI — Qubax blended price as % of OpenRouter's price (median across the basket). 100 = parity; lower = cheaper.
- Blended price — the price of a 3:1 input/output token mix, per 1M tokens.
- Change — week-over-week percentage change in blended price.
- Benchmark prices are OpenRouter list prices. Full methodology: QPI Methodology.
Data window: 2026-09-28 → 2026-10-05. Prices update daily at 08:00 UTC from live marketplace data. Historical charts: [AI Model Price Index](https://qubax.ai/price-index).
