# Gemini 4 Argon vs GPT-6 Astra

> Side-by-side benchmark comparison for Gemini 4 Argon and GPT-6 Astra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-4-argon-vs-gpt-6-astra
- Last updated: September 30, 2026

- Shared sourced benchmarks: 10
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick GPT-6 Astra if you want the stronger benchmark profile. Gemini 4 Argon only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-6 Astra leads overall 88.04 to 64.59.
- The clearest category separation is in knowledge, where the averages are 72.9 for Gemini 4 Argon and 86.6 for GPT-6 Astra.
- The biggest single benchmark swing is Agents' Last Exam in Agentic, with scores of 39.5% and 59.3%.
- Gemini 4 Argon is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-6 Astra also has the larger context window at 1.05M.

## Model Snapshot

| Property | Gemini 4 Argon | GPT-6 Astra |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | null | 1.05M |
| Overall Score | 64.59 | 88.04 |
| Benchmarks Covered | 17 | 34 |
| Pricing (input/output) | $2.00 / $10.00 | $10.00 / $50.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Gemini 4 Argon public-lane score: 63.7 (Estimated · #14/119)
- GPT-6 Astra public-lane score: 70.8 (Supported · #5/119)

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 51.3% | 41.4% | Gemini 4 Argon |
| Finance Agent v2 | 65.4% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 57.40% | 57.90% | GPT-6 Astra |
| Agents' Last Exam | 39.5% | 59.3% | GPT-6 Astra |
| OSWorld 2.0 | 69.2% | 72.6% | GPT-6 Astra |
| CWE-bench v1 | 68.0% | 68.0% | Tie |
| Terminal-Bench-Science 0.1 (6x verifier timeout) | 57.6% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 91.5% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 64.6% | Coming soon |
| ExploitGym | Coming soon | 42.4% | Coming soon |
| HLE w/ tools | Coming soon | 57.2% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 87.3% | Coming soon |
| ApprenticeBench | Coming soon | 68% | Coming soon |

### Coding

- Winner: GPT-6 Astra
- Gemini 4 Argon public-lane score: 68.4 (Supported · #8/144)
- GPT-6 Astra public-lane score: 74.3 (Supported · #4/144)

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 77.9% | 74.1% | Gemini 4 Argon |
| FrontierSWE v2 | 55.1% | 65.5% | GPT-6 Astra |
| Vibe Code Bench | 91.90% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 45.3% | 44.3% | Gemini 4 Argon |
| FrontierCode 1.1 Main | Coming soon | 53.3% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 64.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 4 Argon public-lane score: 77.1 (Unranked · 3 rankable rows)
- GPT-6 Astra public-lane score: 89.6 (#1/27)

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Graphwalks BFS 128K | 99.7% | Coming soon | Coming soon |
| GraphWalks BFS 256K–1M | 84.2% | 71.8% | Gemini 4 Argon |
| ARC-AGI-1 | Coming soon | 98.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 95% | Coming soon |
| ARC-AGI-3 | Coming soon | 62.7% | Coming soon |
| GeneBench-Pro | Coming soon | 37.8% | Coming soon |
| MRCR v2 256K-512K | Coming soon | 100.0% | Coming soon |
| MRCR v2 512K-1M | Coming soon | 96.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 4 Argon public-lane score: Coming soon
- GPT-6 Astra public-lane score: 83.9 (Unranked · 3 rankable rows)

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 71.6% | Coming soon | Coming soon |
| LVBench | 91.7% | Coming soon | Coming soon |
| ScreenSpot Pro | Coming soon | 92.7% | Coming soon |
| BenchCAD Vision2Code (tools) | Coming soon | 0.959 | Coming soon |

### Knowledge

- Winner: GPT-6 Astra
- Gemini 4 Argon public-lane score: 72.9 (Supported · #11/170)
- GPT-6 Astra public-lane score: 86.6 (Supported · #2/170)

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| LABBench2 | 88.8% | Coming soon | Coming soon |
| GPQA | Coming soon | 96% | Coming soon |
| GPQA-D | Coming soon | 96.0% | Coming soon |
| HealthBench (raw) | Coming soon | 56.9% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 58.3% | Coming soon |
| HealthBench Professional | Coming soon | 64.7% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 68.2% | Coming soon |
| HealthBench Hard | Coming soon | 36.6% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 4 Argon public-lane score: Coming soon
- GPT-6 Astra public-lane score: Coming soon

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 0.7% | 8.5% | Gemini 4 Argon |

### Mathematics

- Winner: Not comparable
- Gemini 4 Argon public-lane score: Coming soon
- GPT-6 Astra public-lane score: 85 (Unranked · 1 rankable row)

| Benchmark | Gemini 4 Argon | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tier 4) | Coming soon | 97.600% | Coming soon |

## FAQ

### Which is better overall, Gemini 4 Argon or GPT-6 Astra?

GPT-6 Astra is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 4 Argon and GPT-6 Astra?

The widest category gap is in knowledge, where the averages are 72.9 for Gemini 4 Argon and 86.6 for GPT-6 Astra.

### How many benchmarks does Gemini 4 Argon cover on BenchLM?

Gemini 4 Argon currently has 17 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-6 Astra cover on BenchLM?

GPT-6 Astra currently has 34 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 4 Argon vs GPT-6 Sol](/compare/gemini-4-argon-vs-gpt-6-sol)
- [GPT-6 Astra vs GPT-6 Sol](/compare/gpt-6-astra-vs-gpt-6-sol)
- [Gemini 4 Argon vs GPT-6.1 Sol](/compare/gemini-4-argon-vs-gpt-6-1-sol)
- [GPT-6 Astra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-astra)

## Explore More

- [Gemini 4 Argon profile](/models/gemini-4-argon)
- [GPT-6 Astra profile](/models/gpt-6-astra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)