# Claude Haiku 4.5 Thinking vs Gemini 3 Pro Deep Think

> Side-by-side benchmark comparison for Claude Haiku 4.5 Thinking and Gemini 3 Pro Deep Think across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-4-5-thinking-vs-gemini-3-pro-deep-think
- Last updated: September 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude Haiku 4.5 Thinking and Gemini 3 Pro Deep Think.

## Summary

- Claude Haiku 4.5 Thinking and Gemini 3 Pro Deep Think do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Claude Haiku 4.5 Thinking | Gemini 3 Pro Deep Think |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 2M |
| Independent public score (not head-to-head) | null | 60.67 |
| Benchmarks Covered | 1 | 1 |
| Pricing (input/output) | N/A | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 Thinking public-lane score: Coming soon
- Gemini 3 Pro Deep Think public-lane score: Coming soon

| Benchmark | Claude Haiku 4.5 Thinking | Gemini 3 Pro Deep Think | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 11.39% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 Thinking public-lane score: Coming soon
- Gemini 3 Pro Deep Think public-lane score: 32.8 (Unranked · 1 rankable row)

| Benchmark | Claude Haiku 4.5 Thinking | Gemini 3 Pro Deep Think | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 45.1% | Coming soon |

## FAQ

### Can I compare Claude Haiku 4.5 Thinking and Gemini 3 Pro Deep Think on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Claude Haiku 4.5 Thinking vs Claude Haiku 4.5](/compare/claude-haiku-4-5-vs-claude-haiku-4-5-thinking)
- [Gemini 3 Pro Deep Think vs Claude Haiku 4.5](/compare/claude-haiku-4-5-vs-gemini-3-pro-deep-think)
- [Claude Haiku 4.5 Thinking vs Gemini 3 Pro](/compare/claude-haiku-4-5-thinking-vs-gemini-3-pro)
- [Gemini 3 Pro Deep Think vs Gemini 3 Pro](/compare/gemini-3-pro-vs-gemini-3-pro-deep-think)

## Explore More

- [Claude Haiku 4.5 Thinking profile](/models/claude-haiku-4-5-thinking)
- [Gemini 3 Pro Deep Think profile](/models/gemini-3-pro-deep-think)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)