# Step 5 Preview API Pricing

As of October 25, 2026, Step 5 Preview costs $1.00 per 1M input tokens and $2.70 per 1M output tokens on Opencode GO, with cache reads at $0.10 per 1M tokens. It has a 1,000,000-token context window and returns up to 65,536 tokens per response.

- Page: https://models.litellm.ai/models/step-5-preview
- LiteLLM model name: `opencode_go/step-5-preview`
- Context window: 1,000,000 tokens
- Max output: 65,536 tokens
- Added to LiteLLM: October 24, 2026
- Prices updated: October 24, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Opencode GO | `opencode_go/step-5-preview` | $1.00 | $2.70 | $0.10 | – | – | 1M |

## Cost examples

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

- Opencode GO: $3.35

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

- Opencode GO: $10.54

## Features

Supported: Function calling, Image input, Reasoning.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="opencode_go/step-5-preview",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## Cost calculator

10,000 requests a day with 1,000 input and 500 output tokens each, at Opencode GO's price: $0.00235 per request, $23.50 per day, $705 per month (30 days). Try other numbers at https://models.litellm.ai/calculator?model=step-5-preview

## FAQ

### How much does Step 5 Preview cost?

Step 5 Preview costs $1.00 per 1M input tokens and $2.70 per 1M output tokens on Opencode GO, with cache reads at $0.10 per 1M tokens.

### What is the context window of Step 5 Preview?

Step 5 Preview has a 1,000,000-token context window and returns up to 65,536 tokens per response.

### Which providers offer Step 5 Preview?

Step 5 Preview is available from Opencode GO through LiteLLM, using the model name opencode_go/step-5-preview.

### How do I call Step 5 Preview with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="opencode_go/step-5-preview", 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 Step 5 Preview support?

Step 5 Preview supports function calling, image input and reasoning.

### When did LiteLLM add Step 5 Preview?

Step 5 Preview was added to LiteLLM's model price file on October 24, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json. Maintainers update it from each provider's published pricing, and this page is usually rebuilt within 20 minutes of every change.