Side by side
Compare two AI models
Pick two models and see what each costs, how well it works and what it's actually for. The scores are my own judgment on a 1–5 scale from using these — not vendor claims and not benchmark results. Your picks stay in the address bar, so you can send the comparison to someone else.
Choose a second model above to see them side by side.
Frontier flagship models
Claude Haiku 5.5
Anthropic
Visit- Published benchmark scores
- Cost
- Paid API: $0.10 in / $0.50 out per million tokens up to 100K input; higher rates above 100K.
- Performance
- Released October 7 for high-volume, cost-sensitive work. Anthropic describes Haiku 5.5 as its fastest model and says it costs around 75% less to run than Haiku 4.5 on average. It is the first Haiku with adjustable effort; these are maker-reported claims, not independent results.
- Use it for
- Summarization and classification
- Live customer support
- Coding subagents alongside Sonnet and Opus
- Keep in mind
- Paid API access is not a free consumer plan. Higher effort and prompts over 100K tokens can increase costs.