Claude 4 Opus vs Claude Sonnet Latest
API pricing, context window and capabilities for Claude 4 Opus and Claude Sonnet Latest, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Sonnet Latest wins on price and on context window. Benchmark data is unavailable for one or both models.
Price
Claude Sonnet Latest
Terminal-Bench
Not called
Intelligence
Not called
Context window
Claude Sonnet Latest
Key takeaways
who wins on what, from the published numbersClaude 4 Opus wins
- Higher max output (200K vs 128K)
- More serving providers (3 vs 1)
Claude Sonnet Latest wins
- Cheaper input ($5.00 vs $2.00 /1M)
- Cheaper output ($25.00 vs $10.00 /1M)
- Larger context window (200K vs 1M)
- Has web search
Cheaper overall
Claude Sonnet Latest
$2.00 + $10.00 /1M
Larger context
Claude Sonnet Latest
1M
More providers
Claude 4 Opus
3 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| Claude 4 Opus | Claude Sonnet Latest | |
|---|---|---|
| Input $/1M | $5.00via Snowflake | $2.00OpenRouter routed quote best |
| Output $/1M | $25.00via Snowflake | $10.00OpenRouter routed quote best |
| Context window | 200K | 1M best |
| Max output | 200K best | 128K |
| Serving providers | 3 best | 1 |
| Date | First listed Jul 2025 | First listed Jul 2026 |
Benchmarks
Benchmark scores, side by side| Claude 4 Opus | Claude Sonnet Latest | |
|---|---|---|
| Intelligence | 16.6 | Not available |
| GPQA Diamond | 70% | Not available |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude 4 Opus
via Snowflake
$50
Claude Sonnet Latest
via OpenRouter
$20
Capabilities
feature support, side by side| Feature | Claude 4 Opus | Claude Sonnet Latest |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | ✓ |
Related comparisons
Frequently asked questions
Which is cheaper, Claude 4 Opus or Claude Sonnet Latest?
Claude Sonnet Latest is cheaper for input ($5.00 vs $2.00 per 1M tokens) as an OpenRouter routed quote. Claude Sonnet Latest is cheaper for output ($25.00 vs $10.00 per 1M tokens) as an OpenRouter routed quote.
What is the context window difference between Claude 4 Opus and Claude Sonnet Latest?
Claude 4 Opus has a 200K-token context window and Claude Sonnet Latest has 1M tokens, so Claude Sonnet Latest can take a larger prompt.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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