OpenAI has released GPT-6 Astra, its latest frontier model, which shows significant improvements in specific task-oriented capabilities like long-horizon reasoning and discovering rules, rather than a general increase in intelligence. While its composite intelligence score is only slightly above its predecessor and behind Anthropic's Fable 5.1, Astra excels in benchmarks such as ARC-AGI-3, FrontierMath, Terminal-Bench, and ExploitBench. Despite a higher unit price than GPT-5.6 Sol, its improved token efficiency may lead to lower overall costs for certain applications, particularly agent-based tasks. AI
IMPACT Sets new SOTA on specific task benchmarks, potentially impacting agent development and enterprise adoption.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
- Anthropic
- Claude Opus-5
- Fable 5.1
- Gemini 3.8 Flash
- GPT 5.6 "Sol"
- GPT-6 Astra
- Meta
- Muse Spark 1.3
- OpenAI
- X
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