Claude 3.5 Sonnet vs GPT-4o
Both models sit in the same price bracket and both are good enough for most production workloads. The differences show up in long-context work, coding accuracy and where you can deploy them.
✓ Figures are provided without guarantee. Research as of November 2026.
Claude 3.5 Sonnet
9.4
Overall score / 10 · Editorial rating
Input price / 1M tokens$3.00
Output price / 1M tokens$15.00
Context window200K tokens
Advantage
HumanEval (coding)92.0%
Advantage
Vision inputYes
Tie
Native audioNo
Cloud availabilityAnthropic, Bedrock, Vertex AI
Tie
Prompt cachingYes (up to 90% off cached input)
Advantage
GPT-4o
9.0
Overall score / 10 · Editorial rating
Input price / 1M tokens$2.50
Advantage
Output price / 1M tokens$10.00
Advantage
Context window128K tokens
HumanEval (coding)90.2%
Vision inputYes
Tie
Native audioYes
Advantage
Cloud availabilityOpenAI, Azure
Tie
Prompt cachingYes (50% off cached input)
Our verdict: Claude 3.5 Sonnet
For coding-heavy and long-document workloads, Claude 3.5 Sonnet wins on context length and benchmark accuracy. GPT-4o is the better pick when you need audio in and out, the lowest per-token price, or Azure-hosted deployment. Most teams end up routing between both.
Claude 3.5 Sonnet 3 : 3 GPT-4o · 8 Criteria
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