Claude Mythos Models by Anthropic
AnthropicProprietary
2 models2026Up to 1m ctxFrom $10/1M input
Details
ResearcherAnthropic
LicenseProprietary
Commercial useCommercial use: conditional
Models2
Released2026
Max context1m
Capabilities
VisionAll models
MultimodalAll models
ReasoningAll models
Function CallingAll models
Tool UseAll models
Structured OutputsAll models
Code ExecutionAll models
Links
WebsiteAbout
Anthropic's frontier research model family, positioned above the public Claude 4 line. Released exclusively to invitation-only partners via Project Glasswing for defensive cybersecurity workflows.
Current Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
2 in view
Claude Mythos 5Current
Use when the workload needs security, 1m context, and reasoning.
2026-06security1m contextreasoning
Claude Mythos PreviewCurrent
Use when the workload needs security, 1m context, and reasoning.
2026-05security1m contextreasoning
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Claude Mythos 5 | Use when the workload needs security, 1m context, and reasoning. | 2026-06 | security1m contextreasoning | Current |
| Claude Mythos Preview | Use when the workload needs security, 1m context, and reasoning. | 2026-05 | security1m contextreasoning | Current |
Release Timeline
2 release groups2026-06
1 current
Claude Mythos 5
Currentsecurity1m contextreasoning
2026-05
1 current
Claude Mythos Preview
Currentsecurity1m contextreasoning
Specifications(2 models)
| Model | Released | Context | Vision | Multimodal | Reasoning | Fn Calling | Tool Use | Structured Outputs | Code Exec |
|---|---|---|---|---|---|---|---|---|---|
| Claude Mythos 5 | 2026-06 | 1m | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Claude Mythos Preview | 2026-05 | 1m | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Available From(4 providers)
Pricing
| Model | Provider | Input / 1M | Output / 1M | Type |
|---|---|---|---|---|
| Claude Mythos 5 | Anthropic | $10 | $50 | Serverless |
| Claude Mythos Preview | Anthropic | $25 | $125 | Serverless |
Popular comparisons in this family
- Claude Mythos Preview vs Grok 41K
- Claude Mythos Preview vs GPT-5.5537
- Claude Mythos Preview vs DeepSeek V4 Pro360
- ByteDance Doubao Seed 2.0 Pro vs Claude Mythos Preview340
- Claude Mythos Preview vs Grok 4.3315
- ByteDance Doubao Seed 2.0 Code vs Claude Mythos Preview191
- Claude Mythos Preview vs GPT-5.5 Pro189
- Claude Mythos Preview vs DeepSeek V4 Flash166
- Claude Mythos Preview vs Xiaomi MiMo-V2.5-Pro150
- Claude Mythos Preview vs Mistral Medium 3.5144
Comparisons
All comparisons →Frequently Asked Questions
- What is Claude Mythos used for?
- Claude Mythos is used for security, vision and multimodal work, and reasoning. The family description and listed model capabilities point to those workloads as the best fit.
- How does Claude Mythos compare to Computer Use?
- Claude Mythos by Anthropic is strongest where you need security, while Computer Use by Anthropic is the closest related family to check for agent. Claude Mythos has 2 listed variants and reaches up to 1m context, so compare the specs and pricing tables before choosing a production model.
- Which Claude Mythos model should I use?
- For the lowest listed input price, start with Claude Mythos 5 through Anthropic at $10/1M input tokens. For the most capable/latest local choice, evaluate Claude Mythos 5 with 1m context and reasoning, tool use, function calling, structured outputs, and multimodal inputs.
