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Claude Fable 5 Launches with 80% Benchmark, New Pricing

6/9/2026

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Summary

Claude Fable Launch

Claude Fable 5 launched on June 9, 2026, scoring 80.3% on SWE-Bench Pro and first hitting 90% on Hex’s benchmark.
It redirects cybersecurity, biology, chemistry queries to Claude Opus 4.8 in under 5% of sessions and retains traffic for 30 days, not used for training.
Pricing is $10 per million input tokens, $50 per million output tokens; access is included in Pro, Max and Enterprise plans June 22, credits start June 23.

Summary

Anthropic Files IPO

Anthropic filed for an IPO this year after a funding round valued it at $965 billion.
The firm is working with the U.S. government to expand Claude Mythos access.
Microsoft, Amazon and Cisco were chosen to test Claude Mythos in a gated Project Glasswing release.
Red-team and bug-bounty programs reported no universal jailbreaks after 1,000 testing hours, prompting debate as Uber’s AI budget ran out in four months.

History

Historical Context

OpenAI, founded as a nonprofit in 2015, launched the 175-billion-parameter GPT-3 in May 2020 and secured an exclusive Microsoft Azure license that year, establishing a paid API model. The success spurred other firms—such as Anthropic, which introduced its Claude series to commercialize their models, cementing a commercial LLM ecosystem worldwide.

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Claude Fable Launch

Claude Fable 5 launched on June 9, 2026, scoring 80.3% on SWE-Bench Pro and first hitting 90% on Hex’s benchmark.
It redirects cybersecurity, biology, chemistry queries to Claude Opus 4.8 in under 5% of sessions and retains traffic for 30 days, not used for training.
Pricing is $10 per million input tokens, $50 per million output tokens; access is included in Pro, Max and Enterprise plans June 22, credits start June 23.

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