# Internlm2 5 20B Chat API Pricing

As of October 10, 2026, Internlm2 5 20B Chat is free to use on Ollama. It has a 32,768-token context window and returns up to 8,192 tokens per response.

- Page: https://models.litellm.ai/models/internlm2_5-20b-chat
- LiteLLM model name: `ollama/internlm2_5-20b-chat`
- Context window: 32,768 tokens
- Max output: 8,192 tokens
- Added to LiteLLM: August 2024
- 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 |
|---|---|---|---|---|---|---|---|
| Ollama | `ollama/internlm2_5-20b-chat` | $0 | $0 | – | – | – | 32K |

## Cost examples

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

- Ollama: $0

## Features

Supported: Function calling.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="ollama/internlm2_5-20b-chat",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Internlm2 5 20B Chat cost?

Internlm2 5 20B Chat is free to use on Ollama.

### What is the context window of Internlm2 5 20B Chat?

Internlm2 5 20B Chat has a 32,768-token context window and returns up to 8,192 tokens per response.

### Which providers offer Internlm2 5 20B Chat?

Internlm2 5 20B Chat is available from Ollama through LiteLLM, using the model name ollama/internlm2_5-20b-chat.

### How do I call Internlm2 5 20B Chat with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="ollama/internlm2_5-20b-chat", 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 Internlm2 5 20B Chat support?

Internlm2 5 20B Chat supports function calling.

### When did LiteLLM add Internlm2 5 20B Chat?

Internlm2 5 20B Chat was added to LiteLLM's model price file in August 2024.

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