# Claude Haiku 4.5 vs GPT-6.1 Sol

> Side-by-side benchmark comparison for Claude Haiku 4.5 and GPT-6.1 Sol across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-4-5-vs-gpt-6-1-sol
- Last updated: September 29, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude Haiku 4.5 and GPT-6.1 Sol.

## Summary

- Claude Haiku 4.5 and GPT-6.1 Sol 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 | GPT-6.1 Sol |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 1.05M |
| Independent public score (not head-to-head) | 42.47 | 66.86 |
| Benchmarks Covered | 10 | 9 |
| Pricing (input/output) | $1.00 / $5.00 | $2.00 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 22 (Supported · #96/117)
- GPT-6.1 Sol public-lane score: Coming soon

| Benchmark | Claude Haiku 4.5 | GPT-6.1 Sol | Winner |
|-----------|-----------|-----------|--------|
| JobBench | 16.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 43.8% | Coming soon | Coming soon |
| AutomationBench | Coming soon | 36.1% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 57.0% | Coming soon |
| ExploitGym | Coming soon | 35.1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 19.6 (Supported · #124/143)
- GPT-6.1 Sol public-lane score: 67 (Supported · #8/143)

| Benchmark | Claude Haiku 4.5 | GPT-6.1 Sol | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 73.3% | Coming soon | Coming soon |
| VulcanBench v3 | 76.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 41.2% | Coming soon | Coming soon |
| SWE-bench (Vals) | 66.6% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 71.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: Coming soon
- GPT-6.1 Sol public-lane score: 79.4 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: Coming soon
- GPT-6.1 Sol public-lane score: 83.9 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 34.8 (Estimated · #119/169)
- GPT-6.1 Sol public-lane score: 71.3 (Estimated · #10/169)

| Benchmark | Claude Haiku 4.5 | GPT-6.1 Sol | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 72.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 78.7% | Coming soon | Coming soon |
| HealthBench (raw) | Coming soon | 56.7% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 58.5% | Coming soon |
| HealthBench Professional | Coming soon | 64.2% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 67.2% | Coming soon |
| HealthBench Hard | Coming soon | 36.2% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 28.8 (Unranked · 2 rankable rows)
- GPT-6.1 Sol public-lane score: Coming soon

| Benchmark | Claude Haiku 4.5 | GPT-6.1 Sol | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 5.903% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 2.083% | Coming soon | Coming soon |

## FAQ

### Can I compare Claude Haiku 4.5 and GPT-6.1 Sol 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 vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-vs-claude-haiku-4-5-thinking)
- [GPT-6.1 Sol vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-thinking-vs-gpt-6-1-sol)
- [Claude Haiku 4.5 vs GPT-6 Astra](/compare/claude-haiku-4-5-vs-gpt-6-astra)
- [GPT-6.1 Sol vs GPT-6 Astra](/compare/gpt-6-1-sol-vs-gpt-6-astra)

## Explore More

- [Claude Haiku 4.5 profile](/models/claude-haiku-4-5)
- [GPT-6.1 Sol profile](/models/gpt-6-1-sol)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)