# Claude Haiku 4.5 vs Inkling

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

- Canonical page: https://benchlm.ai/compare/claude-haiku-4-5-vs-inkling
- Last updated: October 14, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Inkling leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Inkling has the higher overall point estimate 52.13 to 40.93. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 33.5 for Claude Haiku 4.5 and 54.5 for Inkling.
- The biggest single benchmark swing is LiveCodeBench (Vals) in Coding, with scores of 41.2% and 85.5%.
- Inkling is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Haiku 4.5 | Inkling |
|----------|----------|----------|
| Creator | Anthropic | Thinking Machines Lab |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Hybrid |
| Context | 200K | 1M |
| Overall Score | 40.93 | 52.13 |
| Benchmarks Covered | 8 | 24 |
| Pricing (input/output) | $1.00 / $5.00 | $1.87 / $4.68 |

## Category Breakdown

### Agentic

- Winner: Inkling
- Claude Haiku 4.5 public-lane score: 20.8 (Supported · #103/124)
- Inkling public-lane score: 36.2 (Supported · #72/124)

| Benchmark | Claude Haiku 4.5 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| JobBench | 16.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 43.8% | 47.6% | Inkling |
| Terminal-Bench 2.1 | Coming soon | 63.8% | Coming soon |
| BrowseComp | Coming soon | 77.1% | Coming soon |
| MCP Atlas | Coming soon | 74.1% | Coming soon |
| CWE-bench v1 | Coming soon | 37.0% | Coming soon |

### Coding

- Winner: Inkling
- Claude Haiku 4.5 public-lane score: 16.4 (Supported · #131/149)
- Inkling public-lane score: 34 (Supported · #80/149)

| Benchmark | Claude Haiku 4.5 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 73.3% | 77.6% | Inkling |
| VulcanBench v3 | 76.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 41.2% | 85.5% | Inkling |
| SWE-bench (Vals) | 66.6% | 77.6% | Inkling |
| SWE-bench Pro | Coming soon | 54.3% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 63.8% | Coming soon |
| FrontierSWE v2 | Coming soon | 4.1% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Inkling public-lane score: 79 (#14/29)

### Multimodal & Grounded

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Inkling public-lane score: 67.5 (#35/54)

| Benchmark | Claude Haiku 4.5 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 73.5% | Coming soon |
| CharXiv | Coming soon | 82% | Coming soon |
| CharXiv w/o tools | Coming soon | 78.1% | Coming soon |

### Knowledge

- Winner: Directional only
- Claude Haiku 4.5 public-lane score: 33.5 (Estimated · #138/181)
- Inkling public-lane score: 54.5 (Supported · #62/181)

| Benchmark | Claude Haiku 4.5 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 72.2% | 87.1% | Inkling |
| MMLU-Pro (Vals) | 78.7% | 86.3% | Inkling |
| GPQA | Coming soon | 87.9% | Coming soon |
| GPQA-D | Coming soon | 87.9% | Coming soon |
| HLE | Coming soon | 46% | Coming soon |
| HLE w/o tools | Coming soon | 30% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Inkling public-lane score: 87.6 (#35/128)

| Benchmark | Claude Haiku 4.5 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.8% | Coming soon |

### Mathematics

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Inkling public-lane score: 58.3 (#11/12)

| Benchmark | Claude Haiku 4.5 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 97.1% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 33.333% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 4.878% | Coming soon |

## FAQ

### Which is better overall, Claude Haiku 4.5 or Inkling?

Inkling has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Claude Haiku 4.5 and Inkling?

The widest category gap is in knowledge, where the averages are 33.5 for Claude Haiku 4.5 and 54.5 for Inkling.

### How many benchmarks does Claude Haiku 4.5 cover on BenchLM?

Claude Haiku 4.5 currently has 8 sourced benchmark scores on BenchLM.

### How many benchmarks does Inkling cover on BenchLM?

Inkling currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Haiku 4.5 vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-vs-claude-haiku-4-5-thinking)
- [Inkling vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-thinking-vs-inkling)
- [Claude Haiku 4.5 vs Inkling-Small](/compare/claude-haiku-4-5-vs-inkling-small)
- [Inkling vs Inkling-Small](/compare/inkling-vs-inkling-small)

## Explore More

- [Claude Haiku 4.5 profile](/models/claude-haiku-4-5)
- [Inkling profile](/models/inkling)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)