Claude 3 Opus vs 
GPT-4
Claude 3 Opus is cheaper than GPT-4 at $15/M vs $30/M input tokens.
Framer-Style Animation
Sections that transition like Framer. Timing is the whole grade.
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Which answer wins?
Price and specs
Not enough votes to call it. On the specs, Claude 3 Opus has the edge: newer, bigger context window.
| Spec | Claude 3 Opus | GPT-4 |
|---|---|---|
| Input price | $15/M tokens | $30/M tokens |
| Output price | $75/M tokens | $60/M tokens |
| Context window | 200K tokens | 8K tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | May 2023 |
| HumanEval | 84.9% | 67.0% |
| At 10M a month | $150 | $300 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Claude 3 Opus
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Claude 3 Opus and GPT-4?
Claude 3 Opus is developed by Anthropic while GPT-4 is developed by OpenAI. Claude 3 Opus has a 200K token context window vs GPT-4's 8K. You can compare their actual outputs across 8 challenges on Rival to see how they differ in practice.
Which is better, Claude 3 Opus or GPT-4?
It depends on your use case. Claude 3 Opus and GPT-4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 8 challenges so you can judge which fits your needs best.
How much does Claude 3 Opus cost compared to GPT-4?
Claude 3 Opus costs $15/M input tokens and GPT-4 costs $30/M input tokens. Claude 3 Opus is $15.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare Claude 3 Opus and GPT-4 on Rival?
This page shows a side-by-side comparison of Claude 3 Opus and GPT-4 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.
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