Claude Sonnet 4.6 vs GPT-5.4

Price & specs

Per 1M tokens, base rates from your credit balance — no usage markup. Prices load live from our catalogue.

When to pick each

Claude Sonnet 4.6

Best for general-purpose chat, reasoning and tool use. Context up to 1M tokens. Claude Sonnet 4.6 details →

GPT-5.4

Best for general-purpose chat, reasoning and tool use. Context up to 1M tokens. GPT-5.4 details →

Test both with one change

Because Zylo is OpenAI-compatible, comparing them is a one-string change.

for model in ["claude-sonnet-4.6", "gpt-5.4"]:
    r = client.chat.completions.create(
        model=model,
        messages=[{"role": "user", "content": "Summarize this in one line."}],
    )
    print(model, "->", r.choices[0].message.content)

Frequently asked questions