Claude Mythos Preview
Claude Mythos Preview is Anthropic's language model with a 1.0M context window and up to 128K output tokens. A preview-stage Claude model under the 'Mythos' codename, designed for exploratory or experimental use cases within Anthropic's model lineup.
Capabilities
Input1/5
Text·
Image✓
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities2/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Claude Opus 4.7 Fast | 1.0M | $30.00 | $150.00 | Available | |
| Claude Opus 4.7 | 1.0M | $5.00 | $25.00 | Available | |
| Claude Sonnet 4.6 | 1.0M | $3.00 | $15.00 | Available | |
| Claude Opus 4.6 | 1.0M | $5.00 | $25.00 | Available | |
| Claude Opus 4.5 | 410K | $5.00 | $25.00 | Available | |
| Claude Haiku 4.5 | 200K | $1.00 | $5.00 | Deprecating | |
| Claude Sonnet 4.5 | 1.0M | $3.00 | $15.00 | Available | |
| Claude Opus 4.1 | 200K | $15.00 | $75.00 | Deprecating | |
| Claude Opus 4 | 410K | $15.00 | $75.00 | Deprecated | |
| Claude Sonnet 4 | 1.0M | $3.00 | $15.00 | Deprecated | |
| Claude Mythos Preview | — | 1.0M | — | — | Current |