Claude 3 Opus vs Claude 4 Sonnet
API pricing, context window and capabilities for Claude 3 Opus and Claude 4 Sonnet, side by side. Prices are the cheapest serving route per 1M tokens, verified against LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude 4 Sonnet wins on price, on coding and on intelligence.
Price
Claude 4 Sonnet
Coding
Claude 4 Sonnet
Intelligence
Claude 4 Sonnet
Context window
Tied
Key takeaways
who wins on what, from the published numbersClaude 3 Opus wins
No clear edge on the tracked metrics.
Claude 4 Sonnet wins
- Cheaper input ($15.00 vs $3.00 /1M)
- Cheaper output ($75.00 vs $15.00 /1M)
- Higher max output (4K vs 200K)
- More serving providers (2 vs 4)
- Supports prompt caching
Cheaper overall
Claude 4 Sonnet
$3.00 + $15.00 /1M
Larger context
Tied
More providers
Claude 4 Sonnet
4 providers
Pricing & specs
cheapest serving route · per 1M tokens| Claude 3 Opus | Claude 4 Sonnet | |
|---|---|---|
| Input $/1M | $15.00 | $3.00 best |
| Output $/1M | $75.00 | $15.00 best |
| Context window | 200K | 200K |
| Max output | 4K | 200K best |
| Serving providers | 2 | 4 best |
| Released | 2024-03-04 | n/a |
Benchmarks
Artificial Analysis indices, side by side| Claude 3 Opus | Claude 4 Sonnet | |
|---|---|---|
| Intelligence | 11.8 | 25.5 best |
| Coding | 19.5 | 37.6 best |
| GPQA Diamond | 49% | 68% best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude 3 Opus
via Vercel AI Gateway
$150
Claude 4 Sonnet
via Replicate
$30
Capabilities
feature support, side by side| Feature | Claude 3 Opus | Claude 4 Sonnet |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | — | — |
| Audio | — | — |
| Prompt caching | — | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude 3 Opus or Claude 4 Sonnet?
Claude 4 Sonnet is cheaper for input ($15.00 vs $3.00 per 1M tokens). Claude 4 Sonnet is cheaper for output ($75.00 vs $15.00 per 1M tokens).
What is the context window difference between Claude 3 Opus and Claude 4 Sonnet?
Both Claude 3 Opus and Claude 4 Sonnet have about a 200K-token context window.
How do Claude 3 Opus and Claude 4 Sonnet compare on benchmarks?
On the tracked Artificial Analysis indices, Claude 4 Sonnet leads on coding, and Claude 4 Sonnet leads on intelligence.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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