# o4-mini vs Beam 1.0 501B-A23B

> Side-by-side benchmark comparison for o4-mini and Beam 1.0 501B-A23B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/o4-mini-vs-reflection-beam
- Last updated: October 29, 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 o4-mini and Beam 1.0 501B-A23B.

## Summary

- o4-mini and Beam 1.0 501B-A23B 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 | o4-mini | Beam 1.0 501B-A23B |
|----------|----------|----------|
| Creator | OpenAI | Reflection AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | null | 43.08 |
| Benchmarks Covered | 7 | 19 |
| Pricing (input/output) | $1.10 / $4.40 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- o4-mini public-lane score: Coming soon
- Beam 1.0 501B-A23B public-lane score: 44.8 (Supported · #65/135)

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | Coming soon | 36.1% | Coming soon |
| HLE w/ tools | Coming soon | 51.1% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.1% | Coming soon |
| MCP Atlas | Coming soon | 80.8% | Coming soon |
| BrowseComp | Coming soon | 76.8% | Coming soon |
| DeepSearchQA | Coming soon | 80.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- o4-mini public-lane score: Coming soon
- Beam 1.0 501B-A23B public-lane score: 28.7 (Estimated · #106/156)

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| HumanEval | 97.3% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 43.3% | Coming soon |
| SWE-bench Pro | Coming soon | 66.1% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.1% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 31.8% | Coming soon |
| SWE Multilingual | Coming soon | 78.3% | Coming soon |
| SWE-bench Verified | Coming soon | 81.6% | Coming soon |
| SciCode | Coming soon | 49.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- o4-mini public-lane score: 66.9 (Unranked · 3 rankable rows)
- Beam 1.0 501B-A23B public-lane score: 78.7 (Unranked · 2 rankable rows)

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| DROP | 77.7% | Coming soon | Coming soon |
| CritPt | Coming soon | 16.3% | Coming soon |
| LongBench v2 | Coming soon | 67.5% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- o4-mini public-lane score: 66.9 (Unranked · 1 rankable row)
- Beam 1.0 501B-A23B public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- o4-mini public-lane score: Coming soon
- Beam 1.0 501B-A23B public-lane score: 48.1 (Supported · #86/179)

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90% | Coming soon | Coming soon |
| GPQA | 77.6% | Coming soon | Coming soon |
| SimpleQA | 20.2% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 90.6% | Coming soon |
| HLE w/o tools | Coming soon | 36% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- o4-mini public-lane score: Coming soon
- Beam 1.0 501B-A23B public-lane score: Coming soon

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| MGSM | 93.7% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- o4-mini public-lane score: 83.9 (#56/157)
- Beam 1.0 501B-A23B public-lane score: Coming soon

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.6% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- o4-mini public-lane score: Coming soon
- Beam 1.0 501B-A23B public-lane score: Coming soon

| Benchmark | o4-mini | Beam 1.0 501B-A23B | Winner |
|-----------|-----------|-----------|--------|
| MATH-500 | 97.5% | Coming soon | Coming soon |
| AIME26 | Coming soon | 97.7% | Coming soon |

## FAQ

### Can I compare o4-mini and Beam 1.0 501B-A23B 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

- [o4-mini vs o4-mini (high)](/compare/o4-mini-vs-o4-mini-high)
- [Beam 1.0 501B-A23B vs o4-mini (high)](/compare/o4-mini-high-vs-reflection-beam)
- [o4-mini vs Beam 1.0 501B-A23B FP8](/compare/o4-mini-vs-reflection-beam-fp8)
- [Beam 1.0 501B-A23B vs Beam 1.0 501B-A23B FP8](/compare/reflection-beam-vs-reflection-beam-fp8)

## Explore More

- [o4-mini profile](/models/o4-mini)
- [Beam 1.0 501B-A23B profile](/models/reflection-beam)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)