Hyperagent pits Opus 5 against GPT-5.6 Sol on real browser-agent tasks and the cheaper model holds up
PrajwalTomar_ · x · 2026-07-27
The post compares Opus 5 and GPT-5.6 Sol inside a real browser agent, using actual tasks and logging the cost of each run.
The author says the test is more meaningful than leaderboard-style comparisons because it reflects how the models perform in client work. Their takeaway is that the cheaper model consistently holds its own, making model choice less obvious than many people assume.
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