GPT Luna Latest is $0.38 cheaper per 1M input tokens (65.5% lower; 2.9x difference).
API cost decision in 10 seconds
NewDeepSeek Pro Latest vs NewGPT Luna Latest
Pick GPT Luna Latest when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick GPT Luna Latest when budget and context both matter.
On the standard 1M input plus 500K output workload, GPT Luna Latest is estimated at $0.8 vs $1.45 for DeepSeek Pro Latest, saving $0.65 (44.8% lower).
Cost-first pickGPT Luna Latest
Context-first pickGPT Luna Latest
Sample savings$0.6544.8%
10x traffic gap$6.49
GPT Luna Latest is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $6.49. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
GPT Luna Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | DeepSeek Pro Latest | GPT Luna Latest |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | GPT Luna Latest | $3.77 | $1.6 |
| Balanced workload | 1M input + 1M output | GPT Luna Latest | $2.32 | $1.4 |
| Output-heavy chatbot | 1M input + 5M output | GPT Luna Latest | $9.27 | $6.2 |
GPT Luna Latest is $0.54 cheaper per 1M output tokens (31% lower; 1.45x difference).
GPT Luna Latest has 1.42K more context (1x larger).
GPT Luna Latest is $0.65 cheaper on the standard workload (44.8% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
GPT Luna Latest has the lower input price; GPT Luna Latest has the lower output price; GPT Luna Latest offers the larger context window. For the 1M input plus 500K output sample, GPT Luna Latest is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.45 for DeepSeek Pro Latest and $0.8 for GPT Luna Latest.
Choose DeepSeek Pro Latest when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
Choose GPT Luna Latest when you care most about lower input-token price, lower output-token price, and larger context window.
- On the standard 1M input plus 500K output workload, GPT Luna Latest is estimated at $0.8 vs $1.45 for DeepSeek Pro Latest, saving $0.65 (44.8% lower).
- GPT Luna Latest is $0.65 cheaper on the standard workload (44.8% lower).
- GPT Luna Latest is $0.38 cheaper per 1M input tokens (65.5% lower; 2.9x difference).
- GPT Luna Latest is $0.54 cheaper per 1M output tokens (31% lower; 1.45x difference).
- GPT Luna Latest has 1.42K more context (1x larger).
| Feature | NewDeepSeek Pro Latest (DeepSeek) | NewGPT Luna Latest (OpenAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.5795 | $0.2 |
| Completion Price per 1M tokens | $1.7384 | $1.2 |
| Sample Workload Cost 1M input + 500K output | $1.45 | $0.8 |
| Context Window | 1.05M | 1.05M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | GPT Luna Latest | On the standard 1M input plus 500K output workload, GPT Luna Latest is estimated at $0.8 vs $1.45 for DeepSeek Pro Latest, saving $0.65 (44.8% lower). |
| High-volume input processing | GPT Luna Latest | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | GPT Luna Latest | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GPT Luna Latest | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- DeepSeek V4 Flash (free) can replace DeepSeek Pro Latest when lower sample workload cost matters most: $0.
- DeepSeek V4 Flash Latest can replace DeepSeek Pro Latest when lower sample workload cost matters most: $0.09.
- DeepSeek V4 Flash 0731 can replace DeepSeek Pro Latest when lower sample workload cost matters most: $0.12.
- DeepSeek V4 Flash 0423 can replace DeepSeek Pro Latest when lower sample workload cost matters most: $0.17.
- GLM 5.3 Flash offers 1.31M context with $0.4 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.12 sample workload cost.
- GLM Flash Latest offers 1.31M context with $0.2 sample workload cost.
- DeepSeek V4 Flash Latest offers 1.31M context with $0.09 sample workload cost.
- GPT-5.6 Luna · OpenAI · #1
- Hy4 preview · Tencent · #2
- GLM 5.3 Flash · Z.ai · #3
- DeepSeek V4 Flash 0731 · DeepSeek · #4
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