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GPT-6 Sol: High-Performance Intelligence for Complex Work

GPT-6 Sol is an advanced, cost-efficient AI model trained with similar methods to OpenAI's flagship GPT-6 Astra, designed to tackle difficult professional tasks while providing higher usage limits.

It delivers state-of-the-art performance in coding, factuality, and computer use at a 50% lower API cost than its predecessor, significantly outperforming similarly priced competitor models like Claude Opus 5.

Specs of GPT-6 Sol

• Release Date: September 22, 2026
• Context Window: 1,050,000
• Max Output Tokens: 128,000
• Knowledge Cutoff: Apr 20, 2026
• API Price: $2 / 1M Input Tokens | $10 / 1M Output Tokens
• Input Modalities: Text, Image
• Output Modalities: Text

Key Features of GPT-6 Sol

Exceptional Cost-to-Performance

GPT-6 Sol excels at difficult professional tasks, offering higher usage limits and significantly lower cost. For instance, on the AutomationBench business workflow test, it outperforms Claude Opus 5 at a mere 9% of the cost per task.

Strong and Efficient Coding Capabilities

Combining high-level coding performance with low API prices, GPT-6 Sol allows developers greater iteration freedom on complex software engineering tasks. On tests like FrontierCode and DeepSWE, it matches top competitors' highest scores at roughly 80% lower cost per task.

Improved Factuality and Reliability

GPT-6 Sol makes significant strides in factual reliability compared to previous models, cutting mistakes in half compared to GPT-5.6 Sol in internal evaluations. It approaches the reliability of the flagship Astra model but operates at a much lower cost.

Experience GPT-6 Sol on HIX AI

Ready to put GPT-6 Sol’s highly capable, cost-efficient intelligence to the test? HIX AI Chat provides the ultimate platform to unlock its full potential for complex professional tasks without annoying setup hassle.

Supercharge GPT-6 Sol’s coding and factuality capabilities with live internet access on HIX AI, allowing you to pull real-time news and academic data straight into your conversation for up-to-the-minute accuracy.

Moreover, you can streamline your productivity by interacting with GPT-6 Sol alongside other top-tier models like GPT-6 Astra, GPT-6 Luna and Claude Opus 5.5, matching the exact demands of your workflow in one unified workspace.

GPT-6 Sol vs Other AI Models