GPT-5.6 alternatives

The best alternatives to GPT-5.6 are Anthropic Claude 3 Opus, Google Gemini 1.5 Pro, Mistral Large 3 and Meta Llama 3.1 405B. Each is an AI tool with a distinct edge — pricing, output quality, or workflow — detailed below and reviewed on Stork.

• Anthropic Claude 3 Opus

  Claude 3 Opus is Anthropic's most intelligent model, excelling in complex reasoning, nuanced content creation, and sophisticated code generation, with strong multimodal (text and image) capabilities and tool use for autonomous agents.

• Google Gemini 1.5 Pro

  Gemini 1.5 Pro is a multimodal AI model featuring an extensive 1-million-token context window, enabling it to process and reason over vast amounts of text, images, audio, and video for deep analysis and code-related tasks.

• Mistral Large 3

  Mistral Large 3 is a flagship multimodal model known for its top-tier reasoning, native multilingual fluency across several European languages, and strong performance in coding and mathematical benchmarks, supporting a 256,000-token context window.

• Meta Llama 3.1 405B

  Llama 3.1 405B is Meta's most capable openly available foundation model, designed with advanced coding skills, improved reasoning, and strong tool-use capabilities, rivaling top AI models in general knowledge and multilingual translation.