COMPARISON / AI models

DeepSeek V4.1 Flash vs. GPT-5.6 Luna

Q: Where do these prices come from?

From each provider's official pages, linked on every product page and reviewed on Nov 4, 2026. Codifly is not paid for any product's position.

Compare published indexes, API pricing and context limits. Pick two to four options to explore how they differ.

General review: 2026-11-04 · Individual dates with sources · Not a real-time feed

Editorial editionGeneral review: 2026-11-04Not a real-time feed

Option 1

DeepSeek V4.1 Flash

DeepSeek · Reasoning API

Key figure · LLM Stats50.9points

Best in 4 of 5

View details

Option 2

GPT-5.6 Luna

OpenAI · Proprietary API

Key figure · LLM Stats44points

Best in 1 of 5

View details

Option 3

Same category, comparable metrics

What changes between your options

CSV

Differences only Only metrics everyone has data forHighlighted = best value on that dimension, not an overall winner

Comparison of DeepSeek V4.1 Flash, GPT-5.6 Luna
Metric	DeepSeek V4.1 Flash	GPT-5.6 Luna
LLM Statspoints · higher is betterDeepSeek V4.1 Flash +16%	50.9 (Best value)LLM Stats ↗	−14%44LLM Stats ↗
Reasoningpoints · higher is betterDeepSeek V4.1 Flash +13%	48 (Best value)LLM Stats ↗	−11%42.5LLM Stats ↗
Codingpoints · higher is betterDeepSeek V4.1 Flash +19%	40.3 (Best value)LLM Stats ↗	−16%34LLM Stats ↗
Input priceUSD / M tokens · lower is betterGPT-5.6 Luna 33% cheaper	+50%$0.30Vendor ↗	$0.20 (Best value)Vendor ↗
Output priceUSD / M tokens · lower is better	$1.20Vendor ↗	$1.20Vendor ↗
Contexttokens · higher is better	1.00MVendor ↗	1.05MVendor ↗
Max outputtokens · higher is betterDeepSeek V4.1 Flash 3× more	384K (Best value)Vendor ↗	−67%128KVendor ↗

Standard API, USD per million tokens, no caching, short context. Indexes are an LLM Stats snapshot; they are not percentages or Codifly tests. A curated catalog, not an exhaustive one.

Compare each dimension

Metric

LLM Stats

Composite index published by LLM Stats. It is not a percentage of correct answers.

DeepSeek V4.1 Flash50.9 (Best value)
GPT-5.6 Luna44

Price versus index

A relationship between two dimensions, not an automatic recommendation.

Input price and LLM Stats values
Product	Input price (USD / M tokens)	LLM Stats (points)
DeepSeek V4.1 Flash	$0.30	50.9
GPT-5.6 Luna	$0.20	44

Select a product in the legend to isolate it. Points may overlap.

Cost at scale

What would your usage cost?

Three usage levels computed only from catalog rates. Assumptions in plain sight; not a quote.

Prototype

5M input + 1M output tokens / month

Cheapest option$2.20/ monthGPT-5.6 Luna19% cheaper than the priciest

GPT-5.6 Luna$2.20 (Best value)
DeepSeek V4.1 Flash$2.70

Product

100M input + 20M output / month

Cheapest option$44.00/ monthGPT-5.6 Luna19% cheaper than the priciest

GPT-5.6 Luna$44.00 (Best value)
DeepSeek V4.1 Flash$54.00

Scale

1,000M input + 200M output / month

Cheapest option$440.00/ monthGPT-5.6 Luna19% cheaper than the priciest

GPT-5.6 Luna$440.00 (Best value)
DeepSeek V4.1 Flash$540.00

Standard input and output rates; no caching, batch, tools or long-context surcharges.

Your own volume

Input × rate + output × rate. Change the volume to see the difference.

Input tokens (millions)Output tokens (millions)

Aggregate volume of short-context requests. No caching, tools, taxes, batch or long-context surcharges. Not a quote.

GPT-5.6 Luna$4.40 (Best value)
DeepSeek V4.1 Flash$5.40

Estimated USD

Specs and operations

Feature	DeepSeek V4.1 Flash	GPT-5.6 Luna
API identifier	deepseek-flash	No data
Version checked	DeepSeek-V4.1-Flash-1017	No data
Input	Text and image	No data
Reference rate	Peak, cache miss; off-peak 50%	No data
Published context	1M; published max output: 384K	No data
Inputs	No data	Text, image
Outputs	No data	Text
Context limit	No data	Total window: 1,050,000 tokens; maximum output: 128,000 within that window
Distribution	No data	Proprietary API

Sources, scope and fine print

What to validate before you make a decision.

Methodology

DeepSeek V4.1 Flash

Shows PEAK uncached rates. Peak hours: Monday–Friday 01–04 and 06–10 UTC. Off-peak costs half. The 1M/384K figures preserve published notation; reasoning tokens consume the output budget. The old deepseek-v4-flash alias remains accepted but serves DeepSeek-V4.1-Flash-1017; use deepseek-flash in integrations.

Checked on 2026-11-04 · Editorial update

GPT-5.6 Luna

Above 272K input tokens, the entire request costs 2× input and 1.5× output. Access depends on provider eligibility.

Checked on 2026-11-04 · Editorial update

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Frequently asked questions

How much does GPT-6 Astra cost?

Input price: $10.00 USD / M tokens · Output price: $50.00 USD / M tokens. Official prices reviewed on Nov 4, 2026; confirm conditions and discounts in the linked source.

How much does Claude Opus 5.5 cost?

Input price: $4.00 USD / M tokens · Output price: $20.00 USD / M tokens. Official prices reviewed on Nov 4, 2026; confirm conditions and discounts in the linked source.

How much does Gemini 4 Argon cost?

Input price: $2.00 USD / M tokens · Output price: $10.00 USD / M tokens. Official prices reviewed on Nov 4, 2026; confirm conditions and discounts in the linked source.

How much does GPT-6 Astra cost in Colombian pesos?

Precio entrada: $10.00 USD / M tokens ≈ COP 32,699 / M tokens · MXN 186 / M tokens · BRL 55.12 / M tokens · Precio salida: $50.00 USD / M tokens ≈ COP 163,494 / M tokens · MXN 929 / M tokens · BRL 276 / M tokens. Reference conversion at the TRM of 3,269.88 COP per dollar (Nov 10, 2026); it excludes taxes and bank fees.

How much does Claude Opus 5.5 cost in Colombian pesos?

Precio entrada: $4.00 USD / M tokens ≈ COP 13,080 / M tokens · MXN 74.29 / M tokens · BRL 22.05 / M tokens · Precio salida: $20.00 USD / M tokens ≈ COP 65,398 / M tokens · MXN 371 / M tokens · BRL 110 / M tokens. Reference conversion at the TRM of 3,269.88 COP per dollar (Nov 10, 2026); it excludes taxes and bank fees.

How much does Gemini 4 Argon cost in Colombian pesos?

Precio entrada: $2.00 USD / M tokens ≈ COP 6,540 / M tokens · MXN 37.14 / M tokens · BRL 11.02 / M tokens · Precio salida: $10.00 USD / M tokens ≈ COP 32,699 / M tokens · MXN 186 / M tokens · BRL 55.12 / M tokens. Reference conversion at the TRM of 3,269.88 COP per dollar (Nov 10, 2026); it excludes taxes and bank fees.

Which is cheapest by input price?

By Gemini 4 Argon ($2.00 USD / M tokens) < Claude Opus 5.5 ($4.00 USD / M tokens) < GPT-6 Astra ($10.00 USD / M tokens). Also compare limits and conditions: a lower price does not always mean an equivalent plan.

Where do these prices come from?

From each provider's official pages, linked on every product page and reviewed on Nov 4, 2026. Codifly is not paid for any product's position.

Metric

DeepSeek V4.1 Flash

GPT-5.6 Luna

LLM Statspoints · higher is betterDeepSeek V4.1 Flash +16%

50.9LLM Stats ↗

−14%44LLM Stats ↗

Reasoningpoints · higher is betterDeepSeek V4.1 Flash +13%

48LLM Stats ↗

−11%42.5LLM Stats ↗

Codingpoints · higher is betterDeepSeek V4.1 Flash +19%

40.3LLM Stats ↗

−16%34LLM Stats ↗

Input priceUSD / M tokens · lower is betterGPT-5.6 Luna 33% cheaper

+50%$0.30Vendor ↗

$0.20Vendor ↗

Output priceUSD / M tokens · lower is better

$1.20Vendor ↗

Contexttokens · higher is better

1.00MVendor ↗

1.05MVendor ↗

Max outputtokens · higher is betterDeepSeek V4.1 Flash 3× more

384KVendor ↗

−67%128KVendor ↗

Input price and LLM Stats values
Product	Input price (USD / M tokens)	LLM Stats (points)
DeepSeek V4.1 Flash	$0.30	50.9
GPT-5.6 Luna	$0.20	44

Input price and LLM Stats values

Product

Input price (USD / M tokens)

LLM Stats (points)

DeepSeek V4.1 Flash

$0.30

50.9

GPT-5.6 Luna

$0.20

Feature

DeepSeek V4.1 Flash

GPT-5.6 Luna

API identifier

deepseek-flash

No data

Version checked

DeepSeek-V4.1-Flash-1017

No data

Input

Text and image

No data

Reference rate

Peak, cache miss; off-peak 50%

No data

Published context

1M; published max output: 384K

No data

Inputs

No data

Text, image

Outputs

No data

Text

Context limit

No data

Total window: 1,050,000 tokens; maximum output: 128,000 within that window

Distribution

No data

Proprietary API

DeepSeek V4.1 Flash

GPT-5.6 Luna

What changes between your options

Compare each dimension

LLM Stats

Price versus index

What would your usage cost?

Your own volume

Specs and operations

Sources, scope and fine print

DeepSeek V4.1 Flash

GPT-5.6 Luna

Take the comparison to your use case.

Frequently asked questions

Guides to help you decide

DeepSeek V4.1 Flash

GPT-5.6 Luna

What changes between your options

Compare each dimension

LLM Stats

Price versus index

What would your usage cost?

Your own volume

Specs and operations

Sources, scope and fine print

DeepSeek V4.1 Flash

GPT-5.6 Luna

Take the comparison to your use case.