# Models

> Lyber offers two exact checkpoints. Choose one by its model ID in every request.

Source: https://www.lyber.ai/docs/models/ · Markdown: https://www.lyber.ai/docs/md/models.md

| Model ID | Checkpoint | Context | Max output | Reasoning effort |
| --- | --- | --- | --- | --- |
| `minimax-m3.1-flash-abliterated` | [lyber-ai/MiniMax-M3.1-Flash-UNCENSORED-NVFP4](https://huggingface.co/lyber-ai/MiniMax-M3.1-Flash-UNCENSORED-NVFP4) | 1,048,576 tokens | 32,768 tokens | `none` `low` `high` `max` |
| `deepseek-v4.1-flash-1017-abliterated` | [dealignai/DeepSeek-V4.1-Flash-1017-UNCENSORED-FP8](https://huggingface.co/dealignai/DeepSeek-V4.1-Flash-1017-UNCENSORED-FP8) | 1,048,576 tokens | 262,144 tokens | `none` `low` `high` `xhigh` `max` |

Both models support streaming, tool calling and reasoning effort. The DeepSeek model also accepts `thinking_token_budget`. See [Thinking](https://www.lyber.ai/docs/capabilities/thinking/).

## Pricing

| Model | Input | Output |
| --- | --- | --- |
| MiniMax M3.1 Flash · NVFP4 | $0.20 per 1M tokens | $0.80 per 1M tokens |
| DeepSeek V4.1 Flash 1017 · FP8 | $0.20 per 1M tokens | $0.80 per 1M tokens |

These are the published rates at the time of writing. The price version in [`GET /v1/models`](https://www.lyber.ai/docs/api/models/) is what billing uses; reasoning tokens bill as output. See [pricing](https://www.lyber.ai/pricing/#models).

## Defaults

A field you leave out takes the model's default.

| Model | temperature | top_p | max_tokens |
| --- | --- | --- | --- |
| MiniMax M3.1 Flash | 0.7 | 0.95 | 32,768 |
| DeepSeek V4.1 Flash 1017 | 1.0 | 1.0 | 262,144 |

## Availability

Each model runs on dedicated capacity and handles one request at a time. While it is busy, a request gets `429` with `x-lyber-admission: not-admitted`: nothing was started or charged, so wait and send it again. `GET /v1/models` reports each model's readiness in `lyber.ready`.

> **Note:** Lyber never routes your request to a different model. If the model you chose is busy or unavailable, the request fails and says so.