AI model matchup

GPT-6 Luna vs DeepSeek-V4-Flash-Vision-Exp

A side-by-side look at published capability scores, listed API pricing, speed, context, and license - to help you decide which trade-offs fit your work.

OpenAI

GPT-5.6 Sol

Rank #1 • Score 57.2
Comparison Metrics
Speed: 89c/s vs 68c/s
Pricing: $7.78 vs $7.22
Anthropic

Claude Opus 5

Rank #2 • Score 56.2

GPT-6 LunavsDeepSeek-V4-Flash-Vision-Exp

DeepSeek-V4-Flash-Vision-Exp leads the RankLLMs Index by 0.6 points (51.8 vs 51.2). Verified API Pricing: $0.10 (GPT-6 Luna) vs Free/Open Source (DeepSeek-V4-Flash-Vision-Exp) per 1M tokens.

Capability profile

GPT-6 LunaDeepSeek-V4-Flash-Vision-Exp

Speed duel

tps
GPT-6 Luna157
DeepSeek-V4-Flash-Vision-Exp50

Price duel

$/1M
GPT-6 Luna$0.10
DeepSeek-V4-Flash-Vision-ExpFree/Open Source

Shorter bar = cheaper. Blended per 1M tokens.

MetricGPT-6 LunaDeepSeek-V4-Flash-Vision-Exp
RankLLMs Overall Score51.2 pts 51.8 pts ▲
Reasoning62.0 ▲55.1
Coding72.4 72.5 ▲
Agentic Tool Use42.1 44.0 ▲
Code Arena Elo1350 1675 ▲
Inference Speed157 tps ▲50 tps
API Price (per 1M tokens)$0.10 Free/Open Source
Context Window1.1M 1M
LicenseProprietary Open Source
Global Rank#44 #43 ▲

Decision notes

What the numbers suggest

DeepSeek-V4-Flash-Vision-Exp leads the RankLLMs overall score by 0.6 points. GPT-6 Luna has the lower listed API rate ($0.10 per 1M tokens).

Treat the overall index as a starting point, then prioritize the benchmark that resembles your task. Published scores and provider pricing can change; this comparison does not represent a first-party test of either model.

Overall index
DeepSeek-V4-Flash-Vision-Exp leads
51.2 to 51.8 pts
Coding score
DeepSeek-V4-Flash-Vision-Exp leads
72.4 to 72.5 pts
Reasoning score
GPT-6 Luna leads
62.0 to 55.1 pts
Agentic score
DeepSeek-V4-Flash-Vision-Exp leads
42.1 to 44.0 pts

Choose by workload

Which profile fits your use?

OpenAI

Consider GPT-6 Luna when

your workload gives more weight to the higher listed reasoning score, the lower listed API rate. Compare those signals with your own task mix, latency needs, and budget.

View GPT-6 Luna profile

DeepSeek

Consider DeepSeek-V4-Flash-Vision-Exp when

your workload gives more weight to the higher listed coding score, the higher overall index score. Compare those signals with your own task mix, latency needs, and budget.

View DeepSeek-V4-Flash-Vision-Exp profile

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