# GPT-5.4 vs GPT-6 Astra

> Side-by-side benchmark comparison for GPT-5.4 and GPT-6 Astra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-4-vs-gpt-6-astra
- Last updated: October 17, 2026

- Shared sourced benchmarks: 15
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick GPT-6 Astra if you want the stronger benchmark profile. GPT-5.4 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 83.88 to 66.7.
- The clearest category separation is in reasoning, where the averages are 64.2 for GPT-5.4 and 93.3 for GPT-6 Astra.
- The biggest single benchmark swing is ARC-AGI-3 in Reasoning, with scores of 0.2% and 62.7%.
- GPT-5.4 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | GPT-5.4 | GPT-6 Astra |
|----------|----------|----------|
| Creator | OpenAI | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1.05M |
| Overall Score | 66.7 | 83.88 |
| Benchmarks Covered | 42 | 40 |
| Pricing (input/output) | $2.50 / $15.00 | $10.00 / $50.00 |

## Category Breakdown

### Agentic

- Winner: GPT-6 Astra
- GPT-5.4 public-lane score: 52.1 (Supported · #44/128)
- GPT-6 Astra public-lane score: 74.8 (Supported · #7/128)

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 75.1% | Coming soon | Coming soon |
| CyberGym | 79.0% | Coming soon | Coming soon |
| BrowseComp | 82.7% | 91.5% | GPT-6 Astra |
| OSWorld-Verified | 75% | Coming soon | Coming soon |
| MCP Atlas | 70.6% | Coming soon | Coming soon |
| Toolathlon | 54.6% | Coming soon | Coming soon |
| τ²-bench results | 98.9% | Coming soon | Coming soon |
| Claw-Eval | 60.3% | Coming soon | Coming soon |
| DeepSearchQA | 73.6% | Coming soon | Coming soon |
| Gert Labs | 64.89% | Coming soon | Coming soon |
| ResearchClawBench | 15.3% | Coming soon | Coming soon |
| JobBench | 38.9% | Coming soon | Coming soon |
| ExploitGym | 6.0% | 42.4% | GPT-6 Astra |
| ApprenticeBench | 11% | 68% | GPT-6 Astra |
| MazeBench | 0% | 23% | GPT-6 Astra |
| OSWorld 2.0 | Coming soon | 72.6% | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 57.90% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 64.6% | Coming soon |
| Agents' Last Exam | Coming soon | 59.3% | Coming soon |
| AutomationBench | Coming soon | 41.4% | Coming soon |
| HLE w/ tools | Coming soon | 57.2% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 87.3% | Coming soon |
| CWE-bench v1 | Coming soon | 68.0% | Coming soon |
| Hermes Index | Coming soon | 56.3% | Coming soon |
| Hermes Bench | Coming soon | 73.7% | Coming soon |

### Coding

- Winner: GPT-6 Astra
- GPT-5.4 public-lane score: 47.7 (Supported · #48/150)
- GPT-6 Astra public-lane score: 75.5 (Supported · #4/150)

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 87.5% | Coming soon | Coming soon |
| SWE-bench Pro | 57.7% | Coming soon | Coming soon |
| React Native Evals | 85.3% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 75.1% | Coming soon | Coming soon |
| Vibe Code Bench | 67.42% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 19.0% | 44.3% | GPT-6 Astra |
| DeepSWE | Coming soon | 74.1% | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 53.3% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 64.5% | Coming soon |
| FrontierSWE v2 | Coming soon | 65.5% | Coming soon |
| Bug Hunt Bench | Coming soon | 45.0 fixes | Coming soon |

### Reasoning

- Winner: GPT-6 Astra
- GPT-5.4 public-lane score: 64.2 (#23/28)
- GPT-6 Astra public-lane score: 93.3 (#1/28)

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 74.0% | 95% | GPT-6 Astra |
| ARC-AGI-3 | 0.2% | 62.7% | GPT-6 Astra |
| ARC-AGI-1 | 93.67% | 98.50% | GPT-6 Astra |
| STEMBench | Coming soon | 2.81 | 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 |
| GraphWalks BFS 256K–1M | Coming soon | 71.8% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.4 public-lane score: 73.1 (#30/54)
- GPT-6 Astra public-lane score: 87.3 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 81.2% | Coming soon | Coming soon |
| OfficeQA Pro | 53.2% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 82.1% | Coming soon | Coming soon |
| CharXiv | 82.8% | Coming soon | Coming soon |
| ERQA | 65.4% | Coming soon | Coming soon |
| SimpleVQA | 61.1% | Coming soon | Coming soon |
| ScreenSpot Pro | 85.4% | 92.7% | GPT-6 Astra |
| ZeroBench | 41.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 77.1% | Coming soon | Coming soon |
| BenchCAD Vision2Code (tools) | Coming soon | 0.959 | Coming soon |

### Knowledge

- Winner: GPT-6 Astra
- GPT-5.4 public-lane score: 69.1 (Supported · #20/184)
- GPT-6 Astra public-lane score: 86.2 (Supported · #3/184)

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.8% | 96% | GPT-6 Astra |
| HLE | 52.1% | Coming soon | Coming soon |
| HLE w/o tools | 39.8% | Coming soon | Coming soon |
| GPQA-D | 92.8% | 96.0% | GPT-6 Astra |
| HealthBench Hard | 40.1% | 36.6% | GPT-5.4 |
| MedXpertQA (Text) | 59.6% | Coming soon | Coming soon |
| HealthBench Professional | 48.1% | 64.7% | GPT-6 Astra |
| HealthBench (raw) | Coming soon | 56.9% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 58.3% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 68.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-5.4 public-lane score: 90.7 (#23/148)
- GPT-6 Astra public-lane score: Coming soon

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 8.5% | Coming soon |

### Mathematics

- Winner: Not comparable
- GPT-5.4 public-lane score: 82 (Unranked · 2 rankable rows)
- GPT-6 Astra public-lane score: 97.3 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.4 | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 78.596% | 93.684% | GPT-6 Astra |
| FrontierMath v2 (Tier 4) | 49.000% | 97.600% | GPT-6 Astra |

## FAQ

### Which is better overall, GPT-5.4 or GPT-6 Astra?

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

### Where is the biggest gap between GPT-5.4 and GPT-6 Astra?

The widest category gap is in reasoning, where the averages are 64.2 for GPT-5.4 and 93.3 for GPT-6 Astra.

### How many benchmarks does GPT-5.4 cover on BenchLM?

GPT-5.4 currently has 42 sourced benchmark scores on BenchLM.

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

GPT-6 Astra currently has 40 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.4 vs GPT-5.4 Pro](/compare/gpt-5-4-vs-gpt-5-4-pro)
- [GPT-6 Astra vs GPT-5.4 Pro](/compare/gpt-5-4-pro-vs-gpt-6-astra)
- [GPT-5.4 vs GPT-5.4 mini](/compare/gpt-5-4-vs-gpt-5-4-mini)
- [GPT-6 Astra vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-gpt-6-astra)

## Explore More

- [GPT-5.4 profile](/models/gpt-5-4)
- [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)