BREAKING
OpenAI Launches GPT-5.6 Sol
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Agents' Last Exam
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Coding Agent Index
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%
BrowseComp
Output Price per 1M Tokens
Sol
30
Terra
15
Luna
6
Fable 5
50
Sol vs Fable 5 Tradeoffs
GPT-5.6 Sol
OpenAI
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Tenacious on long-running work
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Comes close at half the cost
Claude Fable 5
Anthropic
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Stronger on complex tasks
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Edge in UI polish
Sol Adds Agents and Work Tools
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Ultra and Max modes
↓
2
Parallel agents
↓
3
Codex in ChatGPT Work
↓
4
Slack, Drive, M365
Price War Widens User Choice
AI NEWS BLITZ
OpenAI has released its GPT-5.6 family, taking direct aim at Anthropic's Claude Fable 5.