Add per-model pricing (in/out per 1M tokens) to the model list

models.md

@@ -17,13 +17,20 @@ but *where* it runs. The provider part tells you the value it stands for:
 
 ## Current models
 
-| Model | Provider | Value | Notes |
-|---|---|---|---|
-| `deepseek-v4-1-flash` | Tinfoil | **private** | Default; best for agentic tasks (1M context, tool calling). |
-| `gpt-oss-120b` | Tinfoil | **private** | Lightweight fallback. |
-| `glm-5-3-flash` | Tinfoil | **private** | Fast, efficient MoE model. |
-| `greenpt/green-r` | GreenPT | **green** | Reasoning, renewable energy. |
-| `greenpt/green-l` | GreenPT | **green** | Lightweight, renewable energy. |
+Pricing is per 1 million tokens, input / output (what the co-op pays the
+provider — your own cost is your monthly allowance, not per-token billing).
+
+| Model | Provider | Value | Pricing (in / out) | Notes |
+|---|---|---|---|---|
+| `deepseek-v4-1-flash` | Tinfoil | **private** | $0.65 / $1.45 | Default; best for agentic tasks (1M context, tool calling). |
+| `gpt-oss-120b` | Tinfoil | **private** | $0.15 / $0.60 | Lightweight fallback. |
+| `glm-5-3-flash` | Tinfoil | **private** | $0.40 / $1.25 | Fast, efficient MoE model. |
+| `greenpt/green-r` | GreenPT | **green** | $0.35 / $0.95 | Reasoning, renewable energy. |
+| `greenpt/green-l` | GreenPT | **green** | $0.25 / $0.80 | Lightweight, renewable energy. |
+
+Some models also have a discounted cached-input rate (when a prompt is reused
+and doesn't need to be re-read) — see the `code/litellm` config for the exact
+numbers.
 
 > **Note:** the three Tinfoil models currently use their bare names (no
 > `tinfoil/` prefix). They'll be renamed to `tinfoil/deepseek-v4-1-flash` and so