# Grok 4.20 vs Interfaze Beta

> Side-by-side benchmark comparison for Grok 4.20 and Interfaze Beta across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-20-beta-vs-interfaze-beta
- Last updated: September 24, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: Grok 4.20 and Interfaze Beta share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Grok 4.20 has the lower published output-token price.
- Grok 4.20 has the larger published context window at 2M.

## Model Snapshot

| Property | Grok 4.20 | Interfaze Beta |
|----------|----------|----------|
| Creator | xAI | Interfaze |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 2M | 1M |
| Independent public score (not head-to-head) | 59.66 | null |
| Benchmarks Covered | 23 | 9 |
| Pricing (input/output) | $1.25 / $2.50 | $1.50 / $3.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 24.5 (Supported · #81/105)
- Interfaze Beta public-lane score: Coming soon

| Benchmark | Grok 4.20 | Interfaze Beta | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 47.1% | Coming soon | Coming soon |
| DeepSearchQA | 62.8% | Coming soon | Coming soon |
| Gert Labs | 38.36% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 44.2% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 23.8 (Supported · #106/135)
- Interfaze Beta public-lane score: Coming soon

| Benchmark | Grok 4.20 | Interfaze Beta | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 74.2% | Coming soon | Coming soon |
| SWE-bench Verified | 76.7% | Coming soon | Coming soon |
| SWE-bench Pro | 51.8% | Coming soon | Coming soon |
| Vibe Code Bench | 4.06% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 84.3% | Coming soon | Coming soon |
| SWE-bench (Vals) | 72.2% | Coming soon | Coming soon |
| Spider 2.0-Lite | Coming soon | 52.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 41.1 (Unranked · 2 rankable rows)
- Interfaze Beta public-lane score: Coming soon

| Benchmark | Grok 4.20 | Interfaze Beta | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 53.3% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.1% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 34.6 (#45/50)
- Interfaze Beta public-lane score: 27.6 (Unranked · 5 rankable rows)

| Benchmark | Grok 4.20 | Interfaze Beta | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 75.2% | 71.1% | Grok 4.20 |
| CharXiv | 60.9% | Coming soon | Coming soon |
| ERQA | 54.1% | Coming soon | Coming soon |
| SimpleVQA | 57.4% | Coming soon | Coming soon |
| MedXpertQA (MM) | 65.8% | Coming soon | Coming soon |
| OCRBench V2 | Coming soon | 70.7% | Coming soon |
| olmOCR | Coming soon | 85.7% | Coming soon |
| RefCOCO (avg) | Coming soon | 82.1% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 51 (Supported · #55/158)
- Interfaze Beta public-lane score: Coming soon

| Benchmark | Grok 4.20 | Interfaze Beta | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 88.5% | 89.9% | Interfaze Beta |
| HLE w/o tools | 31.6% | Coming soon | Coming soon |
| HealthBench Hard | 20.3% | Coming soon | Coming soon |
| MedXpertQA (Text) | 50.2% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 88.6% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.3% | Coming soon | Coming soon |
| GPQA | Coming soon | 89.9% | Coming soon |
| MMMLU | Coming soon | 90.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: Coming soon
- Interfaze Beta public-lane score: Coming soon

| Benchmark | Grok 4.20 | Interfaze Beta | Winner |
|-----------|-----------|-----------|--------|
| SOB Value Acc | Coming soon | 79.5% | Coming soon |

## FAQ

### Is there enough evidence to pick between Grok 4.20 and Interfaze Beta?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Grok 4.20 vs Grok 4.20 Multi-agent](/compare/grok-4-20-beta-vs-grok-4-20-multi-agent-beta)
- [Interfaze Beta vs Grok 4.20 Multi-agent](/compare/grok-4-20-multi-agent-beta-vs-interfaze-beta)
- [Grok 4.20 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-20-beta)
- [Interfaze Beta vs GPT-6 Astra](/compare/gpt-6-astra-vs-interfaze-beta)

## Explore More

- [Grok 4.20 profile](/models/grok-4-20-beta)
- [Interfaze Beta profile](/models/interfaze-beta)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)