LLM Comparison
DeepSeek V3.2 Exp vs GPT-6 Luna
Side-by-side specs, pricing & capabilities · Updated September 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 40 118 | |
| Family | DeepSeek | GPT-6 |
| Status | Current | Current |
| Release Date | Sep 2025 | Sep 2026 |
| Context Window | 164K tokens | 1.1M tokens |
| Input Price | $0.27/M tokens | $0.10/M tokens |
| Output Price | $0.41/M tokens | $0.50/M tokens |
| Pricing Notes | — | OpenAI standard API, USD per million tokens for prompts up to 272K input tokens: $0.10 input, $0.01 cached input, $0.125 cache writes, $0.50 output. Above 272K input tokens, the full request costs 2x input/cache and 1.5x output. Batch/Flex cost 50% of Standard; Fast costs 2x; regional processing adds 10% where available. Reasoning output tokens are charged at output rates. |
| Capabilities | textcode | textvisionreasoningcodingtool-uselong-contextcontext-caching |
| Training Cutoff | — | 2026-05-18 |
| Max Output | 66K tokens | 128K tokens |
| API Identifier | deepseek/deepseek-v3.2-exp | gpt-6-luna |
| Benchmarks | ||
| MMLU-Pro | 85deepseek | — |
| GPQA Diamond | 79.9deepseek | — |
| AIME 2025 | 89.3deepseek | — |
| HMMT 2025 | 83.6deepseek | — |
| SWE-bench Verified | 67.8deepseek | — |
| Terminal-Bench | 37.7deepseek | — |
| BrowseComp | 40.1deepseek | — |
| Artificial Analysis Intelligence Index v4.3.2 | — | 37.2559686869738artificial-analysis |
| View DeepSeek V3.2 Exp | View GPT-6 Luna | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GPT-6 LunaCheapest | $0.10 | $0.25 | $0.35 | — |
| DeepSeek V3.2 Exp | $0.27 | $0.21 | $0.48 | +36% |
DeepSeek
DeepSeek V3.2 Exp
DeepSeek V3.2 Exp is a large language model from DeepSeek. Supports up to 163,840 token context window. Achieves 87.1% on MMLU. Available from $0.27/M input tokens.
OpenAI
GPT-6 Luna
GPT-6 Luna is OpenAI's efficient reasoning model for focused, high-volume tasks. It accepts text and images, produces text, supports a 1,050,000-token context window and 128,000 output tokens, and is available through the Responses and Chat Completions APIs under the exact gpt-6-luna identifier.
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