Claude Haiku 4.5 vs Claude Opus 4.6
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Claude Haiku 4.5
Anthropic · Oct 2025
Anthropic's fast tier: Sonnet-4-class coding performance at $1/$5 and more than twice the speed.
Claude Opus 4.6
Anthropic · Jan 2026
The first Opus with a 1M-token context window at standard pricing, kicking off Anthropic's rapid 2026 release cadence.
The verdict
Claude Opus 4.6 wins 1 of the 1 benchmarks these models share, against 0 for Claude Haiku 4.5. On price the gap is dramatic: Claude Haiku 4.5 works out roughly 5.0x cheaper per blended million tokens. Claude Opus 4.6 also takes 1M of context versus 200K for Claude Haiku 4.5.
Benchmark head-to-head 0–1
Specs & pricing
| Claude Haiku 4.5 | Claude Opus 4.6 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $1 | $5 |
| Output price / 1M | $5 | $25 |
| Context window | 200K | 1M |
| Max output | 64K | 64K |
| Open weights | no | no |
| Reasoning model | yes | yes |
| Multimodal input | text, image | text, image |
| Knowledge cutoff | Feb 2025 | Aug 2025 |
| Released | Oct 2025 | Jan 2026 |
| Example monthly cost* | $17.50 | $87.50 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Claude Haiku 4.5 or Claude Opus 4.6?
- Claude Opus 4.6 wins 1 of the 1 benchmarks these models share, against 0 for Claude Haiku 4.5. On price the gap is dramatic: Claude Haiku 4.5 works out roughly 5.0x cheaper per blended million tokens. Claude Opus 4.6 also takes 1M of context versus 200K for Claude Haiku 4.5.
- Which is cheaper, Claude Haiku 4.5 or Claude Opus 4.6?
- Claude Haiku 4.5 costs $1/$5 per million input/output tokens, while Claude Opus 4.6 costs $5/$25. For a typical workload of 10M input and 1.5M output tokens per month, that's $17.50 versus $87.50.
- Which model is better for coding, Claude Haiku 4.5 or Claude Opus 4.6?
- On SWE-bench Verified — the standard agentic-coding benchmark — Claude Opus 4.6 scores ~81.4% versus 73.3% for Claude Haiku 4.5, making Claude Opus 4.6 the stronger pick for coding agents.
More comparisons
Claude Haiku 4.5 vs GPT-5.5Claude Opus 4.6 vs GPT-5.5Claude Haiku 4.5 vs GPT-5.2Claude Opus 4.6 vs GPT-5.2Claude Haiku 4.5 vs GPT-5.1Claude Opus 4.6 vs GPT-5.1Claude Haiku 4.5 vs GPT-5Claude Opus 4.6 vs GPT-5Claude Haiku 4.5 vs GPT-5 miniClaude Opus 4.6 vs GPT-5 miniClaude Haiku 4.5 vs OpenAI o3Claude Opus 4.6 vs OpenAI o3