# BTL-4 vs GPT-6 Luna

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

- Canonical page: https://benchlm.ai/compare/btl-4-vs-gpt-6-luna
- Last updated: September 22, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for BTL-4 and GPT-6 Luna.

## Summary

- BTL-4 and GPT-6 Luna 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 | BTL-4 | GPT-6 Luna |
|----------|----------|----------|
| Creator | Bad Theory Labs | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 1.05M |
| Independent public score (not head-to-head) | null | 62.33 |
| Benchmarks Covered | 3 | 7 |
| Pricing (input/output) | $0.00 / $0.00 | $0.10 / $0.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- BTL-4 public-lane score: 50.8 (Estimated · #54/157)
- GPT-6 Luna public-lane score: 56.7 (Estimated · #35/157)

| Benchmark | BTL-4 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| BFCL v4 | 73.5% | Coming soon | Coming soon |
| ExploitGym | Coming soon | 11.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- BTL-4 public-lane score: 50.6 (Estimated · #66/159)
- GPT-6 Luna public-lane score: 66.6 (Estimated · #11/159)

| Benchmark | BTL-4 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 78.4% | Coming soon | Coming soon |
| LiveCodeBench v6 | 66.1% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 66.6% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- BTL-4 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 78.3 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- BTL-4 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 71.3 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- BTL-4 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 63.6 (Estimated · #29/189)

| Benchmark | BTL-4 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| HealthBench (raw) | Coming soon | 50.0% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 54.5% | Coming soon |
| HealthBench Professional | Coming soon | 60.8% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 61.2% | Coming soon |
| HealthBench Hard | Coming soon | 31.4% | Coming soon |

## FAQ

### Can I compare BTL-4 and GPT-6 Luna 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

- [BTL-4 vs BTL-3](/compare/btl-3-vs-btl-4)
- [GPT-6 Luna vs BTL-3](/compare/btl-3-vs-gpt-6-luna)
- [BTL-4 vs BTL-4 Compact](/compare/btl-4-vs-btl-4-compact)
- [GPT-6 Luna vs BTL-4 Compact](/compare/btl-4-compact-vs-gpt-6-luna)

## Explore More

- [BTL-4 profile](/models/btl-4)
- [GPT-6 Luna profile](/models/gpt-6-luna)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)