GPT-6.1 Sol vs. Opus 5.5 for professional PDF document analysis
GPT-6.1 Sol outperforms Opus 5.5 on professional PDF analysis at less than half the cost.
On the GDP.pdf benchmark, which tests professional question answering using complex PDF documents, GPT-6.1 Sol scores higher than Opus 5.5 with fallbacks. It achieves this at less than half the cost per task across various reasoning settings, making it a more cost-effective solution for analyzing professional documents.
Options
- GPT-6.1 Sol
- Opus 5.5
Pick
GPT-6.1 Sol
What it does and when to use it
For tasks involving professional question answering using complex PDF documents like those found in finance and healthcare, GPT-6.1 Sol shows superior performance compared to Opus 5.5. Crucially, it achieves this at a significantly lower cost per task, offering a more economical solution for detailed document analysis.
Sources and credit
- Complex coding and professional work at a lower cost ↗OpenAI Research · OpenAI Research · Sep 30, 2026 · paraphrased
First seen on Subvolts Sep 30, 2026. Updated Oct 1, 2026. Spotted a problem? Tell us.
Where it shows up
- Complex coding and professional work at a lower costOpenAI · OpenAI Research · Sep 30, 2026
- Introducing GPT-6.1 SolOpenAI · OpenAI News · Sep 29, 2026
Related in the PlaybookPlaybook →
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
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- Model pickGPT-6 Astra for complex reasoning and coding tasksUse GPT-6 Astra for the hardest end-to-end work including complex reasoning, coding, and research. · 5 min
Questions people ask
- Which AI tools does this work with?
- The sources used it with ChatGPT.
- Where did this come from?
- OpenAI Research (OpenAI Research). Subvolts collected, normalized and credited it; the link above opens the original.