{"slug":"guidance","name":"Guidance","domain":"guidance-ai.github.io","verdict":"As of 2026-07-14, ChatGPT, Claude, Gemini, Grok collectively rank Guidance #9 of 14 for prompt engineering framework (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/guidance (modelsagree.com, CC BY 4.0).","best_rank":9,"categories":2,"entries":[{"slug":"best-prompt-engineering-framework","title":"Best prompt engineering framework","rank":9,"of":14,"score":2,"appearances":1,"modelRanks":{"ChatGPT":4},"reason":"Token-level constraints, grammars, regex controls, selective generation, and model-agnostic templating provide stronger guarantees than prompt wording alone, especially with local or open-weight models.","reasons":[{"model":"ChatGPT","reason":"Token-level constraints, grammars, regex controls, selective generation, and model-agnostic templating provide stronger guarantees than prompt wording alone, especially with local or open-weight models."}],"fixes":[{"model":"ChatGPT","fix":"Backend compatibility and constrained-decoding complexity make it less convenient for ordinary hosted-API applications."}],"updated":"2026-07-14","api":"https://modelsagree.com/api/v1/best/best-prompt-engineering-framework.json"},{"slug":"best-llm-structured-output-tool","title":"Best structured output tool for LLMs","rank":9,"of":10,"score":1,"appearances":1,"modelRanks":{"Gemini":5},"reason":"It is the most flexible tool for complex, multi-step prompting workflows where control logic, state, and structured generation must be dynamically interleaved during the generation phase. Its templating engine reduces computation time by programmatically fast-forwarding known static text.","reasons":[{"model":"Gemini","reason":"It is the most flexible tool for complex, multi-step prompting workflows where control logic, state, and structured generation must be dynamically interleaved during the generation phase. Its templating engine reduces computation time by programmatically fast-forwarding known static text."}],"fixes":[{"model":"Gemini","fix":"Its custom Handlebars-inspired templating syntax introduces a steep learning curve and highly opinionated structure that is difficult to integrate into standard object-oriented patterns."}],"updated":"2026-07-13","api":"https://modelsagree.com/api/v1/best/best-llm-structured-output-tool.json"}],"page":"https://modelsagree.com/product/guidance","check":"https://modelsagree.com/check?q=Guidance","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}