GPT-5.6 Sol Benchmark Performance
Aggregated from 8 sources · Updated 27 Aug 2026, 03:18 UTC (UTC)
Coverage Balance
8 sourcesBlindspot Alert: Center Gap
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Facts (10)
- Established
OpenAI launched the GPT-5.6 model family, including Sol, Terra, and Luna, for general availability on July 9, 2026.
- Established
GPT-5.6 Sol Ultrafast, powered by Cerebras wafer-scale silicon, delivers up to 750 output tokens per second.
- Established
GPT-5.6 Sol achieved an 85.8% solve rate on the DeepSWE software engineering benchmark at a cost of $8.37 per run.
- Established
GPT-5.6-Cyber completed 95% of advanced cybersecurity tasks in internal testing, compared to 1.5% for the standard GPT-5.6 Sol model.
- Established
OpenAI introduced 'Daybreak Red' and 'Daybreak Blue' access tiers to provide varying levels of safeguard restrictions for cybersecurity defense work.
- EmergingNiche Signal
The open-weight model GLM-5.3 outperformed GPT-5.6 Sol on the DeepSWE benchmark with an 87.6% solve rate at a lower cost of $3.99 per run.
- EmergingNiche Signal
GPT-5.6 Sol reached a score of 53.6 on the Agents’ Last Exam, exceeding Claude Fable 5 by 13.1 points.
- EmergingNiche Signal
Grok 4.6 matches GPT-5.6 Sol on the Artificial Analysis Intelligence Index composite score.
- EmergingNiche Signal
GPT-5.6 Sol at max reasoning effort averaged 13.33% on the ARC-AGI-3 Public benchmark and 7.78% on Semi-Private.
- EmergingNiche Signal
OpenAI reduced GPT-5.6 Sol API pricing by over 20% on August 21, 2026.