# Claude Haiku 5.5 vs GPT-5.2

> Side-by-side benchmark comparison for Claude Haiku 5.5 and GPT-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-5-5-vs-gpt-5-2
- Last updated: October 7, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude Haiku 5.5 and GPT-5.2.

## Summary

- Claude Haiku 5.5 and GPT-5.2 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 5.5 | GPT-5.2 |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 400K |
| Independent public score (not head-to-head) | 66.32 | 60.28 |
| Benchmarks Covered | 5 | 16 |
| Pricing (input/output) | $0.10 / $0.50 | $1.75 / $14.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 62.1 (Supported · #18/122)
- GPT-5.2 public-lane score: 43.3 (Supported · #57/122)

| Benchmark | Claude Haiku 5.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 39.20% | Coming soon | Coming soon |
| HLE w/ tools | 57.4% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 65.8% | Coming soon |
| OSWorld-Verified | Coming soon | 47.3% | Coming soon |
| Gert Labs | Coming soon | 46.54% | Coming soon |
| JobBench | Coming soon | 34.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 60.9 (Supported · #20/146)
- GPT-5.2 public-lane score: 38.4 (Supported · #68/146)

| Benchmark | Claude Haiku 5.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| FrontierCode 1.1 Main | 46.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 80% | Coming soon |
| SWE-bench Pro | Coming soon | 55.6% | Coming soon |
| Vibe Code Bench | Coming soon | 53.50% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 79.2 (Unranked · 2 rankable rows)
- GPT-5.2 public-lane score: 60.7 (Unranked · 4 rankable rows)

| Benchmark | Claude Haiku 5.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 52.9% | Coming soon |
| ARC-AGI-1 | Coming soon | 86.17% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 67.3 (#22/49)

| Benchmark | Claude Haiku 5.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 46.4% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 79.5% | Coming soon |
| MathVision | Coming soon | 83.0% | Coming soon |
| CharXiv | Coming soon | 82.1% | Coming soon |
| V* | Coming soon | 75.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 58 (Supported · #47/174)

| Benchmark | Claude Haiku 5.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| HLE w/o tools | 45.9% | Coming soon | Coming soon |
| GPQA | Coming soon | 92.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 91.2 (#15/125)

### Mathematics

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 57.4 (Unranked · 2 rankable rows)

| Benchmark | Claude Haiku 5.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 40.700% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 18.800% | Coming soon |

## FAQ

### Can I compare Claude Haiku 5.5 and GPT-5.2 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 5.5 vs GPT-5.2 Pro](/compare/claude-haiku-5-5-vs-gpt-5-2-pro)
- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Claude Haiku 5.5 vs GPT-5.2 Instant](/compare/claude-haiku-5-5-vs-gpt-5-2-instant)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)

## Explore More

- [Claude Haiku 5.5 profile](/models/claude-haiku-5-5)
- [GPT-5.2 profile](/models/gpt-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)