Is Claude Mythos 5 Down?

Quickest ways to check the current status of red.anthropic.com plus recent known issues and working alternatives if it's out.

Last editorial review: 2026-06-09

How to check right now

Step 1 -- Load the site
Open red.anthropic.com→

The simplest check. If it loads and you can log in, the tool is up for you.

Step 2 -- Crowdsourced reports
DownDetector: Claude Mythos 5→

User-reported outages aggregated across regions. Good signal for partial or regional outages.

Step 3 -- Live social
Search X for “Claude Mythos 5down” →

Live tweets from other users. Fastest signal for a fresh outage -- often beats status pages by 10-20 minutes.

Step 4 -- Official status page
Find Claude Mythos 5's status page →

Most vendors publish a status page at status.[domain] or on Statuspage.io. Google-search to find the current URL.

Known issues we've tracked

MODEL LAUNCH (2026-06-09): **Claude Mythos 5** replaces Mythos Preview as the Glasswing-track model -- same underlying model as the publicly available Claude Fable 5, with safeguards lifted in certain areas for vetted partners. Existing Mythos Preview users upgrade immediately. Anthropic simultaneously made the Mythos class public for the first time via Fable 5 ($10/$50 per 1M, plan-included through 6/22), with classifier fallback to Opus 4.8 on cybersecurity, bio/chem, and distillation-attempt requests. All Mythos-class traffic now carries mandatory 30-day retention, overriding zero-data-retention agreements (not used for training)
2026-06-09•Anthropic news (anthropic.com/news/claude-fable-5-mythos-5), TechCrunch, CNBC
Mythos's cybersecurity capability is the reason for its gated release. Anthropic's red-team evaluations showed the model could plan end-to-end network intrusion chains, which Anthropic deemed too risky for open API access
2026-04•Anthropic Project Glasswing announcement, Axios, CNBC, Schneier on Security
Naming history: 'Claude Mythos Preview' was the April 2026 product name (internal codename Capybara); the 'Mythos 5' name became official with the 2026-06-09 launch, aligning with Fable 5 (there was never a Mythos 1-4)
2026-06•Axios, Fortune, Anthropic news
Access applications are not open -- Anthropic is approaching partner orgs directly rather than accepting inbound requests
2026-04•Anthropic Glasswing page
Axios reported 2026-04-19 that the NSA is among the ~40 orgs with Mythos access, despite the Pentagon's formal supply-chain risk designation of Anthropic. Dario Amodei reportedly met with W.H. Chief of Staff Susie Wiles and Treasury Secretary Scott Bessent on 2026-04-17. Material context if you are evaluating Mythos / Glasswing in a federal or defense-adjacent procurement -- the political posture inside the US government is not uniform
2026-04•Axios, TechCrunch, Engadget

Issues here are sourced from our editorial sweeps, not real-time telemetry. Newer issues may exist.

What to use if Claude Mythos 5 is down

Top AIToolTier-ranked alternatives in the same category, ordered by our overall score.

A

Muse Spark (Meta)

8.8

Meta's first model from its Superintelligence Lab -- natively multimodal with Contemplating mode for multi-agent reasoning

A

Claude (Anthropic)

8.5

Anthropic's flagship LLM family -- Claude Fable 5 (launched June 9, 2026) is the first publicly available Mythos-class model: $10/$50 per 1M, included on Pro/Max/Team/Enterprise through June 22, hard safety fallback to Opus 4.8 on cyber/bio/chem requests (<5% of sessions). Opus 4.8 (May 28) remains the $5/$25 workhorse with 1M-token context, effort control, and cheap fast mode

A

Gemini (Google)

8.3

Google's LLM with deep Google Workspace integration, 2M token context window, and native code execution -- Gemini 3.5 Flash GA 2026-05-19 (I/O 2026), Gemini 3.5 Pro rolling out June 2026, Gemini Spark agent + Managed Agents public preview in the Gemini API

A

MiMo (Xiaomi)

8.3

Xiaomi's MiMo-V2.5 family launched 2026-04-22 -- Pro (1T total / 42B active MoE, 1M context, native vision+audio reasoning), Multimodal base, TTS (3 sub-models: base, VoiceDesign, VoiceClone), and ASR (open-source, English + Chinese + major dialects). Full voice pipeline for the agent era. Extra-charge 1M-context tier removed at launch

A

Hunyuan 3 (Tencent Hy3)

8.1

Tencent's Hy3 Preview launched 2026-04-23 -- 295B total / 21B active MoE, 256K context, open-sourced on HuggingFace under tencent/Hy3-preview. Cheapest frontier-class API at ~1.2 RMB per million input tokens. Integrated into Yuanbao, WeChat, QQ

About Claude Mythos 5

Tier C (6.5/10). Anthropic's unrestricted frontier model -- launched June 9, 2026 alongside Claude Fable 5 (the same model made safe for general use). Mythos 5 itself stays gated to ~150 Project Glasswing orgs and select biology researchers; everyone else now gets Mythos-class capability through Fable 5.

Read the full Claude Mythos 5review →