Compare Claude Opus 4.7 and GPT-5.4 side by side. See pricing, capabilities, context length, and performance. Use both on Krater.ai from $20/mo.
Claude Opus 4.7 vs GPT-5.4: strengths, best use cases and how to run both side by side. The live page adds context windows, token pricing and more comparisons once it loads.
Run Claude Opus 4.7 and GPT-5.4 on the same prompt in the Krater Model Arena, then keep the winner in your workflow. One subscription covers both, from $20 a month.
Open Krater chat · Claude Opus 4.7 on Krater · GPT-5.4 on Krater
Our tested head-to-heads run the same prompt set through both models in the Model Arena, then rank answers blind. Read the testing methodology, or browse every comparison.