# Beam vs Step 3.7 Flash

> Side-by-side benchmark comparison for Beam and Step 3.7 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/reflection-beam-vs-step-3-7-flash
- Last updated: October 5, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Step 3.7 Flash leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Step 3.7 Flash has the higher overall point estimate 44.15 to 0. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 80.1% and 59.5%.
- Beam is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Step 3.7 Flash also has the larger context window at 256K.

## Model Snapshot

| Property | Beam | Step 3.7 Flash |
|----------|----------|----------|
| Creator | Reflection AI | StepFun |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | null | 256K |
| Overall Score | null | 44.15 |
| Benchmarks Covered | 16 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.20 / $1.15 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 36 (Estimated · #67/119)

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 80.1% | 59.5% | Beam |
| MCP Atlas | 78.7% | Coming soon | Coming soon |
| BrowseComp | 77.4% | 75.8% | Beam |
| DeepSearchQA | 80.1% | 92.8% | Step 3.7 Flash |
| Toolathlon | Coming soon | 49.5% | Coming soon |
| Claw-Eval | Coming soon | 67.1% | Coming soon |
| HLE w/ tools | Coming soon | 47.2% | Coming soon |
| Gert Labs | Coming soon | 51.57% | Coming soon |

### Coding

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 32.1 (Estimated · #88/144)

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 44.4% | Coming soon | Coming soon |
| SWE-bench Pro | 65.5% | 56.3% | Beam |
| Terminal-Bench 2.1 | 80.1% | 59.5% | Beam |
| SWE-Atlas Codebase QnA | 34.6% | Coming soon | Coming soon |
| SWE Multilingual | 78% | Coming soon | Coming soon |
| SWE-bench Verified | 80.9% | Coming soon | Coming soon |
| SciCode | 49.7% | Coming soon | Coming soon |

### Reasoning

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 73 (Unranked · 2 rankable rows)

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 65.5% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 72 (Unranked · 3 rankable rows)

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| SimpleVQA | Coming soon | 79.2% | Coming soon |
| V* | Coming soon | 95.3% | Coming soon |

### Knowledge

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 44.1 (Estimated · #85/171)

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 90.5% | Coming soon | Coming soon |
| HLE w/o tools | 36.2% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 80.6 (#53/125)

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.7% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Step 3.7 Flash public-lane score: Coming soon

| Benchmark | Beam | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.8% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Beam or Step 3.7 Flash?

Step 3.7 Flash has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

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

Beam currently has 16 sourced benchmark scores on BenchLM.

### How many benchmarks does Step 3.7 Flash cover on BenchLM?

Step 3.7 Flash currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Beam vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-reflection-beam)
- [Step 3.7 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-step-3-7-flash)
- [Beam vs GPT-6 Astra](/compare/gpt-6-astra-vs-reflection-beam)
- [Step 3.7 Flash vs GPT-6 Astra](/compare/gpt-6-astra-vs-step-3-7-flash)

## Explore More

- [Beam profile](/models/reflection-beam)
- [Step 3.7 Flash profile](/models/step-3-7-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)