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 Google: Gemini 3.1 Pro Preview
Anthropic: Claude Haiku 4.5 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation …
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Haiku 4.5 | Google: Gemini 3.1 Pro Preview | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 200K | 1.0M | 🏆 Google: Gemini 3.1 Pro Preview |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.00 | $2.00 | 🏆 Anthropic: Claude Haiku 4.5 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $5.00 | $12.00 | 🏆 Anthropic: Claude Haiku 4.5 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| 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 Google: Gemini 3.1 Pro Preview?
Anthropic: Claude Haiku 4.5 wins on 2 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 Google: Gemini 3.1 Pro Preview?
Input: $1.00 vs $2.00 per 1M tokens. Output: $5.00 vs $12.00 per 1M tokens.
What context windows do Anthropic: Claude Haiku 4.5 and Google: Gemini 3.1 Pro Preview support?
Anthropic: Claude Haiku 4.5 supports up to 200K tokens. Google: Gemini 3.1 Pro Preview supports up to 1.0M tokens.
Do both Anthropic: Claude Haiku 4.5 and Google: Gemini 3.1 Pro Preview support tool calling?
Anthropic: Claude Haiku 4.5: yes. Google: Gemini 3.1 Pro Preview: yes.