{"slug":"real-esrgan","name":"Real-ESRGAN","domain":"github.com","verdict":"As of 2026-07-13, ChatGPT, Claude, Gemini, Grok collectively rank Real-ESRGAN #10 of 11 for ai image upscaling api. Source: https://modelsagree.com/product/real-esrgan (modelsagree.com, CC BY 4.0).","best_rank":10,"categories":1,"entries":[{"slug":"best-ai-image-upscaling-api","title":"Best AI image upscaling API","rank":10,"of":11,"score":2,"appearances":1,"modelRanks":{"Claude":4},"reason":"the open-source workhorse and best raw value — solid general-purpose 4x upscaling, pairs with GFPGAN/CodeFormer for face restoration, and via Replicate gives pay-per-use API access with full control and no lock-in; assumes the practitioner can select and assemble models.","reasons":[{"model":"Claude","reason":"the open-source workhorse and best raw value — solid general-purpose 4x upscaling, pairs with GFPGAN/CodeFormer for face restoration, and via Replicate gives pay-per-use API access with full control and no lock-in; assumes the practitioner can select and assemble models."}],"fixes":[{"model":"Claude","fix":"it is a model, not a polished product — you own the pipeline, cold starts, and tuning, and its output is dated versus 2026 SOTA, weaker on heavy denoise and severe degradation."}],"updated":"2026-07-13","api":"https://modelsagree.com/api/v1/best/best-ai-image-upscaling-api.json"}],"page":"https://modelsagree.com/product/real-esrgan","check":"https://modelsagree.com/check?q=Real-ESRGAN","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}