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answer: direct
beat: ai-industry
source: 1 article · updated: July 9, 2026
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How does GPT-5.6 Sol compare to Anthropic's Mythos on security benchmarks?

On OpenAI's ExploitBench, Sol reportedly matched the performance of Anthropic's Mythos Preview while generating only about one-third as many output tokens to get there. That token-efficiency claim comes from OpenAI's own release materials, though, not from an independently audited third-party benchmark, so treat it as a vendor claim.

Answered in

OpenAI Shipped GPT-5.6 After 12 Days Under White House Limits

OpenAI publicly released GPT-5.6 on July 9, two weeks after limiting it to government-vetted partners over cybersecurity concerns.

Crashtech Editorial July 9, 2026 AI Business & Money

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