# Claude Mythos 5 Usage, Cost & Rank | OpenCode Data

> Claude Mythos 5 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens.

Restricted Claude model for advanced cybersecurity and biology research workflows

- Page: https://opencode.ai/data/anthropic/claude-mythos-5
- JSON: https://opencode.ai/data/anthropic/claude-mythos-5.json
- Model ID: anthropic/claude-mythos-5
- Lab: Anthropic

## Model facts

| Fact | Value |
| --- | --- |
| Context window | 1M |
| Max output | 128K |
| Knowledge cutoff | 2026-01-31 |
| Release date | 2026-06-09 |
| Input modalities | text, image, pdf |
| Output modalities | text |
| Reasoning | Yes |
| Tool calling | Yes |
| Open weights | No |

## Pricing: USD per 1M tokens

| Input | Output | Cached input | Cache write |
| --- | --- | --- | --- |
| $10.00 | $50.00 | $1.00 | $12.50 |

## Methodology

- Updates: Aggregated every hour. Days and weeks use UTC.
- Tokens: Input, output, reasoning, and cached tokens for each request.
- Users and sessions: Approximate counts of distinct users and OpenCode sessions.
- Cost: Session cost is the average cost per OpenCode session. Token prices are list prices from the OpenCode model catalog.
- Retention: The share of a model's users in one week who use it again the next week.
- Citation: Cite OpenCode Data (opencode.ai/data) with the update time shown at the top of the page.