# Claude 3.5 Haiku vs Step 5 Preview

> Side-by-side benchmark comparison for Claude 3.5 Haiku and Step 5 Preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-3-5-haiku-vs-step-5-preview
- 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 Step 5 Preview.

## Summary

- Claude 3.5 Haiku and Step 5 Preview 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 | Step 5 Preview |
|----------|----------|----------|
| Creator | Anthropic | StepFun |
| Type | Proprietary | Pending |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | null | 68.98 |
| Benchmarks Covered | 10 | 22 |
| Pricing (input/output) | N/A | $1.00 / $2.70 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: 63.7 (Estimated · #17/124)

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | Coming soon | 85.0% | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 33.30% | Coming soon |
| CyberGym | Coming soon | 84.7% | Coming soon |
| AutomationBench | Coming soon | 44.0% | Coming soon |
| Toolathlon-Verified | Coming soon | 74.1% | Coming soon |
| MCP Atlas | Coming soon | 85.6% | Coming soon |
| JobBench | Coming soon | 59.0% | Coming soon |
| APEX-Agents | Coming soon | 37.8% | Coming soon |
| DRACO | Coming soon | 83.3% | Coming soon |
| BrowseComp | Coming soon | 88.7% | Coming soon |
| Agents' Last Exam | Coming soon | 29.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: 60.6 (Estimated · #20/149)

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| HumanEval | 88.1% | Coming soon | Coming soon |
| SWE-bench Verified | 40.6% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 67.7% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.0% | Coming soon |
| SciCode | Coming soon | 58.9% | Coming soon |
| ProgramBench | Coming soon | 80.5% | Coming soon |
| sweMarathon | Coming soon | 72.7% | Coming soon |
| MLS-Bench Lite | Coming soon | 40.5% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: 83.4 (Unranked · 2 rankable rows)

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| BBH | 86.6% | Coming soon | Coming soon |
| DROP | 83.1% | Coming soon | Coming soon |
| CritPt | Coming soon | 20.9% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: 74.6 (#24/54)

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 60.3% | Coming soon |
| MMMU-Pro | Coming soon | 76% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: 68.4 (Supported · #22/181)

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 41.6% | Coming soon | Coming soon |
| MMLU-Pro | 65% | Coming soon | Coming soon |
| MMLU | 80.3% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 93.5% | Coming soon |
| HLE | Coming soon | 46.5% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| MGSM | 85.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 85.9% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude 3.5 Haiku public-lane score: Coming soon
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Claude 3.5 Haiku | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 5.3% | Coming soon | Coming soon |

## FAQ

### Can I compare Claude 3.5 Haiku and Step 5 Preview 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 Claude Opus 5.5](/compare/claude-3-5-haiku-vs-claude-opus-5-5)
- [Step 5 Preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-step-5-preview)
- [Claude 3.5 Haiku vs GPT-6.1 Sol](/compare/claude-3-5-haiku-vs-gpt-6-1-sol)
- [Step 5 Preview vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-step-5-preview)

## Explore More

- [Claude 3.5 Haiku profile](/models/claude-3-5-haiku)
- [Step 5 Preview profile](/models/step-5-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)