Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and comp…
Model details →Anthropic: Claude Haiku 4.5 vs Perplexity: Sonar Pro Search
Anthropic: Claude Haiku 4.5 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Exclusively available on the OpenRouter API, Sonar Pro's new Pro Search mode is Perplexity's most advanced agentic search system. It is designed for deeper reasoning and analysis. Pricing is based on tokens plus $18 per thousand requests. T…
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Haiku 4.5 | Perplexity: Sonar Pro Search | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 200K | 200K | Tie |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.00 | $3.00 | 🏆 Anthropic: Claude Haiku 4.5 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $5.00 | $15.00 | 🏆 Anthropic: Claude Haiku 4.5 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | — | 🏆 Anthropic: Claude Haiku 4.5 |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Haiku 4.5 better than Perplexity: Sonar Pro Search?
Anthropic: Claude Haiku 4.5 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Haiku 4.5 and Perplexity: Sonar Pro Search?
Input: $1.00 vs $3.00 per 1M tokens. Output: $5.00 vs $15.00 per 1M tokens.
What context windows do Anthropic: Claude Haiku 4.5 and Perplexity: Sonar Pro Search support?
Anthropic: Claude Haiku 4.5 supports up to 200K tokens. Perplexity: Sonar Pro Search supports up to 200K tokens.
Do both Anthropic: Claude Haiku 4.5 and Perplexity: Sonar Pro Search support tool calling?
Anthropic: Claude Haiku 4.5: yes. Perplexity: Sonar Pro Search: not advertised.