Claude Haiku 4.5 vs Claude Opus Latest
Claude Haiku 4.5 is cheaper on output tokens, while Claude Opus Latest offers a larger context window. Choose Claude Haiku 4.5 or Claude Opus Latest based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Claude Haiku 4.5 | Claude Opus Latest |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Input / 1M tokens | $1.00 | $4.00 |
| Output / 1M tokens | $5.00 | $20.00 |
| Context window | 200K | 1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Oct 2025 | — |
| LiveBench score | 61.0 | — |
| FrontierMath score | 5.9 | — |
| Epoch Capabilities Index score | 142 | — |
| GPQA Diamond score | 71.2 | — |
| SWE-bench Multilingual score | 64.7 | — |
| SWE-bench Verified score | 66.6 | — |
| LMArena (Chatbot Arena) Elo score | 1397 | — |
| LMArena WebDev Elo score | 1330 | — |
FAQ
Is Claude Haiku 4.5 or Claude Opus Latest cheaper?
Claude Haiku 4.5 is cheaper on output tokens ($5.00 vs $20.00 per 1M).
Which has the larger context window, Claude Haiku 4.5 or Claude Opus Latest?
Claude Opus Latest has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.