Claude Mythos Preview

Name: Claude Mythos Preview
Price: 25 USD
Availability: InStock
Author: Anthropic

AI model

Release date: 2026-04-07Updated: 2026-04-08 13:38:56.5513,344

Live demoGitHubHugging FaceCompare

Parameters

Not disclosed

Context length

No data

Chinese support

Supported

Reasoning ability

Claude Mythos Preview is an AI model published by Anthropic, released on 2026-04-07, for AI model, with no open-source license.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

Claude Mythos Preview

Model basics

Reasoning traces

Not supported

Thinking modes

Thinking Mode (Default)Standard Mode

Context length

No data

Max output length

8192 tokens

Model type

AI model

Release date

2026-04-07

Model file size

No data

MoE architecture

Total params / Active params

No data / N/A

Knowledge cutoff

No data

Claude Mythos Preview

Open source & experience

Code license

Not open source

Weights license

Not open source

GitHub repo

GitHub link unavailable

Hugging Face

Hugging Face link unavailable

Live demo

No live demo

Claude Mythos Preview

Official resources

Paper

Introducing Claude Mythos Preview and Project Glasswing

DataLearnerAI blog

Claude Mythos Preview

API details

API speed

3/5

💡Default unit: $/1M tokens. If vendors use other units, follow their published pricing.

Learn about pricing modes

Standard

Type	Condition	Input	Output
Text	-	$25.00/ 1M	$125.00/ 1M

Claude Mythos Preview

Benchmark Results

Claude Mythos Preview currently shows benchmark results led by GPQA Diamond (1 / 177, score 94.60), HLE (1 / 154, score 64.70), SWE-bench Verified (1 / 105, score 93.90). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.