AI Model Atlas / OpenRouter
Fusion
Model available without token fees. Context window has 1M tokens, or about 1,667 A4 pages of text.
What it costs in practice
Pricing per million tokens doesn't mean anything to anyone, so I convert it to three tasks that people actually give to models. The usage assumptions are listed for each row so you can verify them.
| Task | Input | Output | Cost |
|---|---|---|---|
| 1500-word articlebrief plus finished text in English | 1,500 tokens | 2,200 tokens | $0 |
| 100 chat queries700 tokens per question and 400 per answer | 70,000 tokens | 40,000 tokens | $0 |
| Hour of work with an agentagent reads repository and writes fixes | 250,000 tokens | 30,000 tokens | $0 |
Technical details
| Provider | OpenRouter |
| Modalities | text → text |
| Context window | 1M tokens (~1,667 A4 pages) |
| Maximum response | not specified |
| Step-by-step reasoning | no |
| Tool calling | no |
| Forced JSON format | no |
| Knowledge cutoff | not specified |
| Cache read | no data |
| Content moderation | no extra filter |
How it compares to the rest
The database contains 469 models, and this one belongs to the free group. A longer context window is available in 146 models.
Input price history
The chart shows the price of a million input tokens on consecutive measurement days. History starts on the day I launched the atlas and grows with each day. I don't backfill data.
Alternatives at a similar price
Models from other providers whose cost for the same article comes out closest.
| Model | Input / M | Output / M | 1500-word article | Context |
|---|---|---|---|---|
| Jev RouterTypesafe | free | free | $-3,700 | 1M |
| SwitchyardNVIDIA | free | free | $-3,700 | 1M |
| ERNIE-5.5-Flash-Preview (free)Baidu | free | free | $0 | 1M |
| Inkling 2 Small (free)Thinkingmachines | free | free | $0 | 1M |
Compare Fusion with another model or go back to the full database 469 models.