API cost decision in 10 seconds

NewOpenAI GPT Luna Latest vs DeepSeek V4 Pro 0813 (batch)

Pick OpenAI GPT Luna Latest when budget and context both matter.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick OpenAI GPT Luna Latest when budget and context both matter.

On the standard 1M input plus 500K output workload, OpenAI GPT Luna Latest is estimated at $0.8 vs $1.65 for DeepSeek V4 Pro 0813 (batch), saving $0.85 (51.5% lower).

Cost-first pickOpenAI GPT Luna Latest
Context-first pickOpenAI GPT Luna Latest
Sample savings$0.8551.5%
10x traffic gap$8.5

OpenAI 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 $8.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

OpenAI GPT Luna Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickOpenAI GPT Luna LatestDeepSeek V4 Pro 0813 (batch)
Input-heavy / RAG5M input + 500K outputOpenAI GPT Luna Latest$1.6$4.29
Balanced workload1M input + 1M outputOpenAI GPT Luna Latest$1.4$2.64
Output-heavy chatbot1M input + 5M outputOpenAI GPT Luna Latest$6.2$10.56
Cheaper input OpenAI GPT Luna Latest $0.2 vs $0.66 / 1M

OpenAI GPT Luna Latest is $0.46 cheaper per 1M input tokens (69.7% lower; 3.3x difference).

Cheaper output OpenAI GPT Luna Latest $1.2 vs $1.98 / 1M

OpenAI GPT Luna Latest is $0.78 cheaper per 1M output tokens (39.4% lower; 1.65x difference).

Larger context OpenAI GPT Luna Latest 1.05M vs 1.05M

OpenAI GPT Luna Latest has 1.42K more context (1x larger).

Sample workload OpenAI GPT Luna Latest $0.8 vs $1.65

OpenAI GPT Luna Latest is $0.85 cheaper on the standard workload (51.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
OpenAI GPT Luna Latest Calculating… Estimated API cost
DeepSeek V4 Pro 0813 (batch) Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

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

Verdict

OpenAI GPT Luna Latest has the lower input price; OpenAI GPT Luna Latest has the lower output price; OpenAI GPT Luna Latest offers the larger context window. For the 1M input plus 500K output sample, OpenAI GPT Luna Latest is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.8 for OpenAI GPT Luna Latest and $1.65 for DeepSeek V4 Pro 0813 (batch).

Best Fit

Choose OpenAI GPT Luna Latest when you care most about lower input-token price, lower output-token price, and larger context window.

Choose DeepSeek V4 Pro 0813 (batch) when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes
  • On the standard 1M input plus 500K output workload, OpenAI GPT Luna Latest is estimated at $0.8 vs $1.65 for DeepSeek V4 Pro 0813 (batch), saving $0.85 (51.5% lower).
  • OpenAI GPT Luna Latest is $0.85 cheaper on the standard workload (51.5% lower).
  • OpenAI GPT Luna Latest is $0.46 cheaper per 1M input tokens (69.7% lower; 3.3x difference).
  • OpenAI GPT Luna Latest is $0.78 cheaper per 1M output tokens (39.4% lower; 1.65x difference).
  • OpenAI GPT Luna Latest has 1.42K more context (1x larger).
Head-to-Head Specs
FeatureNewOpenAI GPT Luna Latest
(OpenAI)		DeepSeek V4 Pro 0813 (batch)
(DeepSeek)
Input Price
prompt tokens per 1M		$0.2$0.66
Completion Price
per 1M tokens		$1.2$1.98
Sample Workload Cost
1M input + 500K output		$0.8$1.65
Context Window1.05M1.05M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionOpenAI GPT Luna LatestOn the standard 1M input plus 500K output workload, OpenAI GPT Luna Latest is estimated at $0.8 vs $1.65 for DeepSeek V4 Pro 0813 (batch), saving $0.85 (51.5% lower).
High-volume input processingOpenAI GPT Luna LatestLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsOpenAI GPT Luna LatestLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workOpenAI GPT Luna LatestA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace OpenAI GPT Luna Latest when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace OpenAI GPT Luna Latest when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace OpenAI GPT Luna Latest when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace OpenAI GPT Luna Latest when lower sample workload cost matters most: $0.12.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

OpenAI catalog

Review all tracked OpenAI models before deciding whether this matchup is the right shortlist.

Open OpenAI models

DeepSeek catalog

Check other DeepSeek models with comparable pricing, context, or release timing.

Open DeepSeek models
OpenAI GPT Luna Latest

This model always redirects to the latest model in the OpenAI GPT Luna family.

DeepSeek V4 Pro 0813 (batch)

DeepSeek V4 Pro 0813 is a large-scale mixture-of-experts model from DeepSeek. This is the GA release of DeepSeek V4 Pro.