Is Claude Mythos 5 out yet?
Yes.
About Claude Mythos 5
Watching for Anthropic to restore the bleeding edge Mythos model.
How we confirmed it
Released via the API
July 1, 2026 at 12:00 PM UTC
An administrator marked this model available (silently).
Open detection source →Release timeline
- 2026-06-12 Official announcement or source
- 2026-07-01T21:07:35.105Z First official availability observed
- 2026-07-01T21:07:35.105Z Availability confirmed after the second check
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Benchmarks
Coding#1
Claude Mythos 5 · via BenchLM.ai · captured Sep 1, 2026 · source
82.65
Agentic#2
Claude Mythos 5 · via BenchLM.ai · captured Sep 1, 2026 · source
75.73
MultimodalGrounded#3
Claude Mythos 5 · via BenchLM.ai · captured Jul 17, 2026 · source
92.8
Multilingual#2
Claude Mythos 5 · via BenchLM.ai · captured Jul 17, 2026 · source
100
InstructionFollowing#16
Claude Mythos 5 · via BenchLM.ai · captured Jul 17, 2026 · source
86.3
ExploitBench
Claude Mythos Preview · via Epoch AI · captured Sep 22, 2026 · source
70.6
Sourced metrics mirrored with attribution - not community sentiment.
Data from BenchLM.ai.
Data from Epoch AI, “AI Benchmarking Hub” (CC BY 4.0).
Vibe rating
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Model Pulse
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Community consensus
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OutYet reporting
- Claude Fable 5.1 puts migration and data-retention choices in the foreground
Anthropic and AWS documentation put Claude Fable 5.1's migration behavior, cache economics, and safety-monitoring boundaries ahead of broad capability claims for technical buyers.
Compare Claude Mythos 5 with another model →
Also waiting on: Claude Fable 5.1, Gemini 3.5 Pro, Claude Mythos 5.1, GPT-6
Comments
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