GPT-6 Sol vs Claude Opus 5.5: Coding, Pricing, and AI Agents - TechRepublic
GPT-6 Sol and Claude Opus 5.5 compete on API pricing, coding performance, reasoning controls, and agent workloads. Image: Generated by ChatGPT
GPT-6 Sol costs less on standard workloads, while Claude Opus 5.5 leads several coding benchmarks. Here is how pricing, agents, and reasoning compare.
Sep 24, 2026
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OpenAI and Anthropic released GPT-6 Sol and Claude Opus 5.5 on Sept. 22, 2026, putting two new coding- and agent-focused models in direct competition.
GPT-6 Sol starts at half the standard API price of Opus 5.5, while Claude posts stronger results in several current coding benchmarks. The gap changes once prompts get very large, and the two models also differ in reasoning controls, deployment options, and safeguards.
For teams choosing between...
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