GPT-6 Luna vs DeepSeek V4.1 Flash: Release Comparison
Comparison of the GPT-6 Luna and DeepSeek V4.1 Flash releases: 6 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.
- For intelligence, DeepSeek V4.1 Flash scores highest: DeepSeek V4.1 Flash (Reasoning, Max Effort) at 39, against GPT-6 Luna (max) at 37 for GPT-6 Luna.
- For output speed, DeepSeek V4.1 Flash is fastest: DeepSeek V4.1 Flash (Non-Reasoning) at 243 t/s, against GPT-6 Luna (medium) at 143 t/s for GPT-6 Luna.
- For cost per task, GPT-6 Luna is cheapest: GPT-6 Luna (low) at $0.0045, against DeepSeek V4.1 Flash (Non-Reasoning) at $0.15 for DeepSeek V4.1 Flash.
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost per Task (USD, Log Scale)
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indexes
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2.1, AA-Briefcase v1.1, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2.1, AA-Briefcase v1.1, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DeepSeek V4.1 Flash (Reasoning, Max Effort) |  DeepSeek | 39 | 45 | 52 | 41 | 41 | 39 | 44 | $0.27 | $0.2 | $0.30 | $1.20 | $0.006 | $477 | 89k | 63k | 253M | 232 | 0.97s | 9.58s | 11.73s | 282.36s | 552B 16B active at inference time | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text |    +15 | |||
| GPT-6 Luna (max) |  OpenAI | 37 | 39 | 45 | 39 | 37 | 37 | 45 | $0.07 | $0.1 | $0.10 | $0.50 | $0.01 | $122 | 51k | 39k | 145M | 134 | 125.94s | 125.94s | 129.68s | 362.95s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Luna (xhigh) | OpenAI | 34 | 37 | 42 | 37 | - | 33 | 41 | $0.04 | $0.1 | $0.10 | $0.50 | $0.01 | $66 | 27k | 19k | 68M | 128 | 19.20s | 19.20s | 23.12s | 209.76s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Luna (high) | OpenAI | 32 | 36 | 41 | 35 | - | 32 | 40 | $0.03 | $0.1 | $0.10 | $0.50 | $0.01 | $48 | 20k | 13k | 47M | 135 | 9.60s | 9.60s | 13.30s | 151.52s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Luna (medium) | OpenAI | 29 | 32 | 37 | 33 | - | 29 | 37 | $0.02 | $0.1 | $0.10 | $0.50 | $0.01 | $31 | 11k | 6k | 28M | 143 | 5.28s | 5.28s | 8.78s | 79.51s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| DeepSeek V4.1 Flash (Non-Reasoning) | DeepSeek | 25 | 30 | 36 | 30 | - | 25 | 32 | $0.15 | $0.2 | $0.30 | $1.20 | $0.006 | $156 | 34k | 0 | 45M | 243 | 1.16s | 1.16s | 3.22s | 136.49s | 552B 16B active at inference time | 1M | Sep 2026 | - | No | Supports: text and image | Supports: text | | |||
| GPT-6 Luna (low) | OpenAI | 21 | 24 | 22 | 25 | - | 23 | 30 | $0.0045 | $0.1 | $0.10 | $0.50 | $0.01 | $11 | 2k | 515 | 8M | 124 | 2.23s | 2.23s | 6.26s | 16.89s | - | 1M | Sep 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| GPT-6 Luna (Non-reasoning) | OpenAI | 18 | 20 | 20 | 19 | - | 21 | 24 | $0.01 | $0.1 | $0.10 | $0.50 | $0.01 | $19 | 4k | 0 | 7M | 124 | 0.87s | 0.87s | 4.92s | 29.56s | - | 1M | Sep 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |