Claude Mythos 5 Pricing
All plans and pricing as of 2026-07-04
Project Glasswing (Gated)
- ✓Mythos 5 (launched 2026-06-09) restricted to Project Glasswing partners -- expanded to ~150 orgs as of 2026-06-02 -- plus select biology researchers
- ✓Mythos Preview users can upgrade to Mythos 5 immediately
- ✓Founding partners: Amazon, Apple, Google, Cisco, CrowdStrike, JPMorgan, Microsoft, Nvidia
- ✓Broader trusted-access program for cybersecurity + biomedical research planned
- ✓Mandatory 30-day retention on all Mythos-class traffic (not used for training)
Public access (via Claude Fable 5)
- ✓Fable 5 (2026-06-09) is the same underlying model 'made safe for general use' -- classifiers route cyber/bio/chem requests to Opus 4.8 (<5% of sessions)
- ✓Included on Claude Pro/Max/Team/Enterprise at no extra cost through 2026-06-22, usage credits after
- ✓See /tools/claude for the full Fable 5 review
Is Claude Mythos 5 Worth the Price?
Value Score: 5/10
Overall Score: 6.5/10 · Partner organizations in Project Glasswing doing cybersecurity research, defensive red-teaming, threat intelligence, or large-scale vulnerability triage. If your use case is legitimate cybersecurity and you have enterprise Anthropic contact, ask about Glasswing admission.
UPDATE (July 1, 2026): the suspension is over. The US government lifted the export controls on June 30; public Fable 5 returned globally on July 1, and Mythos 5 was restored -- but only partially, to a set of US organizations with government approval, while Anthropic works to re-admit the broader (and international) Glasswing base. So Mythos 5 is available again, on a narrower footprint than before, and Mythos Preview formally retired June 30. The pre-suspension picture, for context: the Mythos story changed on June 9, 2026. What began in April as a deliberately withheld cybersecurity preview is now a two-track release: Mythos 5 for ~150 vetted Glasswing orgs and select biology researchers with safeguards lifted, and Claude Fable 5 for the public -- the same model with classifier-enforced fallbacks to Opus 4.8 on dangerous-capability requests. That makes this page's subject the gated track only. If you're in Glasswing, Mythos 5 is an immediate upgrade from Mythos Preview. If you're not, you no longer have to wonder what you're missing: Fable 5 IS the Mythos class, minus the <5% of sessions that touch cyber/bio/chem territory. The deeper signal stands -- Anthropic now ships its frontier in safety-differentiated tiers, and the 30-day mandatory retention on all Mythos-class traffic shows what public access to this capability level costs in privacy terms.
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How Claude Mythos 5 Pricing Compares
| Tool | Free Tier | Starting Price | Value Score | Overall |
|---|---|---|---|---|
| Claude Mythos 5(this tool) | No | Invite only | 5/10 | 6.5 |
| Muse Spark (Meta) | Yes | $0 | 10/10 | 8.8 |
| Claude (Anthropic) | Yes | $0 | 8/10 | 8.5 |
| Gemini (Google) | Yes | $0 | 9/10 | 8.3 |
| MiMo (Xiaomi) | Yes | $0 | 9/10 | 8.3 |
| Hunyuan 3 (Tencent Hy3) | Yes | $0 | 9.5/10 | 8.1 |