# Lfm 40B API Pricing

As of October 10, 2026, Lfm 40B costs $0.10 per 1M input tokens and $0.20 per 1M output tokens on Lambda. It has a 131,072-token context window and returns up to 131,072 tokens per response.

- Page: https://models.litellm.ai/models/lfm-40b
- LiteLLM model name: `lambda_ai/lfm-40b`
- Context window: 131,072 tokens
- Max output: 131,072 tokens
- Added to LiteLLM: July 2025
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Lambda | `lambda_ai/lfm-40b` | $0.10 | $0.20 | – | – | – | 128K |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Lambda: $0.30

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Lambda: $1.04

## Features

Supported: Function calling, Parallel tool calls.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="lambda_ai/lfm-40b",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Lfm 40B cost?

Lfm 40B costs $0.10 per 1M input tokens and $0.20 per 1M output tokens on Lambda.

### What is the context window of Lfm 40B?

Lfm 40B has a 131,072-token context window and returns up to 131,072 tokens per response.

### Which providers offer Lfm 40B?

Lfm 40B is available from Lambda through LiteLLM, using the model name lambda_ai/lfm-40b.

### How do I call Lfm 40B with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="lambda_ai/lfm-40b", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Lfm 40B support?

Lfm 40B supports function calling and parallel tool calls.

### When did LiteLLM add Lfm 40B?

Lfm 40B was added to LiteLLM's model price file in July 2025.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json