# Claude 3.5 Haiku vs GPT-4o

> Side-by-side benchmark comparison for Claude 3.5 Haiku and GPT-4o across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-3-5-haiku-vs-gpt-4o
- Last updated: October 14, 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 3.5 Haiku and GPT-4o.

## Summary

- Claude 3.5 Haiku and GPT-4o 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 3.5 Haiku | GPT-4o |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 200K | 128K |
| Independent public score (not head-to-head) | null | 29.5 |
| Benchmarks Covered | 10 | 2 |
| Pricing (input/output) | N/A | $2.50 / $10.00 |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- GPT-4o public-lane score: Coming soon

| Benchmark | Claude 3.5 Haiku | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| HumanEval | 88.1% | Coming soon | Coming soon |
| SWE-bench Verified | 40.6% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- GPT-4o public-lane score: 59.7 (Unranked · 2 rankable rows)

| Benchmark | Claude 3.5 Haiku | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| BBH | 86.6% | Coming soon | Coming soon |
| DROP | 83.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- GPT-4o public-lane score: 28.1 (Estimated · #159/181)

| Benchmark | Claude 3.5 Haiku | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 41.6% | Coming soon | Coming soon |
| MMLU-Pro | 65% | Coming soon | Coming soon |
| MMLU | 80.3% | Coming soon | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- GPT-4o public-lane score: 30.2 (#16/17)

| Benchmark | Claude 3.5 Haiku | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| MGSM | 85.6% | Coming soon | Coming soon |
| MMLU-ProX | Coming soon | 61.1% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- GPT-4o public-lane score: 39 (#108/128)

| Benchmark | Claude 3.5 Haiku | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 85.9% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- GPT-4o public-lane score: 27 (Unranked · 1 rankable row)

| Benchmark | Claude 3.5 Haiku | GPT-4o | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 5.3% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 0.351% | Coming soon |

## FAQ

### Can I compare Claude 3.5 Haiku and GPT-4o 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 3.5 Haiku vs GPT-4o mini](/compare/claude-3-5-haiku-vs-gpt-4o-mini)
- [GPT-4o vs GPT-4o mini](/compare/gpt-4o-vs-gpt-4o-mini)
- [Claude 3.5 Haiku vs Claude Opus 5.5](/compare/claude-3-5-haiku-vs-claude-opus-5-5)
- [GPT-4o vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gpt-4o)

## Explore More

- [Claude 3.5 Haiku profile](/models/claude-3-5-haiku)
- [GPT-4o profile](/models/gpt-4o)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)