DeepSeek V4 Pro 0813 vs GPT 5.6 Luna

Pick a route and service tier under each model. Prices, the calculator and the verdicts follow your choice.

DeepSeek V4 Pro 0813
GPT 5.6 Luna

At a glance

Generated from the rows below

Choose DeepSeek V4 Pro 0813 for

  • The longest output: 384,000 tokens
  • The most routes on Phaseo: 11

Choose GPT 5.6 Luna for

  • The lowest cost per typical request ($0.001)
  • The largest context window: 1,050,000 tokens
  • The only one that takes images

The models are statistically tied on the Epoch Capabilities Index: their 95% confidence intervals overlap.

Overview

Context window
1Mtokens
1.05Mtokens (best)
Max output
384Ktokens (best)
128Ktokens
Takes
Text
Text, Image
Returns
Text
Text
Routes on Phaseo
11 providers
+3
(best)
7 providers
Released
13 Aug 2026
9 Jul 2026

Pricing

Prices on the route and tier chosen under each model

Avian · StandardOpenAI · Standard
Input
$0.561/ 1M tokens
from $0.20/ 1M tokensInput ≤ 272K$0.20Input > 272K$0.40
Output
$1.683/ 1M tokens
from $1.20/ 1M tokensInput ≤ 272K$1.20Input > 272K$1.80
Cache read
$0.0187/ 1M tokens
from $0.02/ 1M tokensInput ≤ 272K$0.02Input > 272K$0.04
Cache write
No write fee listed
from $0.25/ 1M tokensInput ≤ 272K$0.25Input > 272K$0.50
Typical request2K tokens in, 500 out
$0.002
$0.001 (best)

What will it cost?

Estimate a month of requests on the route and tier chosen for each model

ModelPer requestPer month
DeepSeek V4 Pro 0813Avian · Standard$0.002$58.905
GPT 5.6 LunaOpenAI · Standard$0.001$30.00

Uses the route and tier chosen under each model, over 30 days. Cached input is billed at the cache-read rate.

Performance

Live gateway traffic

Latency p50
No traffic in the last 5 days
No traffic in the last 5 days
Throughput p50
No traffic in the last 5 days
No traffic in the last 5 days
Requests, last 24 hours
None in the last 24 hours
None in the last 24 hours

Activity

Tokens sent through Phaseo each day over the last 30 days

None of these models has had traffic through Phaseo in the last 30 days.

Features

Features from the parameters Phaseo routes support

Tool calling
Yes
Yes
Structured outputs
Yes
Yes
Reasoning effort
Yes
Yes
Web search
Yes
Yes
Prompt cachingon the chosen route
Yes
Yes
Quantisationon the chosen route
Not stated
Not stated

Benchmarks

Only results that two or more of the selected models report get a row

Compare at effort

Epoch Capabilities Index Independent

Higher is better · dot is the estimate, band is the 95% confidence interval · Epoch AI, CC BY 4.0

DeepSeek V4 Pro 0813155.9 95% CI 154.0–157.9
GPT 5.6 Luna156.8 95% CI 154.9–158.8

Every interval overlaps, so these models are statistically tied on this index.

Artificial Analysis Intelligence Index Independent

Higher is better · at Max effort · 2 of 2 models tested

DeepSeek V4 Pro 081336
GPT 5.6 Luna37.3

Where they rank

The five leaders on each capability index, then the compared models. Each model at its best-scoring setting.

Artificial Analysis Intelligence Index50 models ranked

  1. #1Claude Opus 5.559.1
  2. #2GPT-6 Astra56.9
  3. #3GPT-6.1 Sol54.6
  4. #4Claude Sonnet 5.554.5
  5. #5GPT-6.1 Terra51.3
  6. #31GPT 5.6 Luna23.8
  7. #32DeepSeek V4 Pro 081323.1

Artificial Analysis Coding Index171 models ranked

  1. #1Claude Fable 5.181.6
  2. #2GPT 5.6 Sol78.3
  3. #3Claude Opus 578.0
  4. #4GPT-6 Astra77.1
  5. #5Grok 4.676.8
  6. #24GPT 5.6 Luna71.4
  7. #30DeepSeek V4 Pro 081368.8

Artificial Analysis Agentic Index112 models ranked

  1. #1Claude Fable 5.157.9
  2. #2Claude Opus 556.5
  3. #3Qwen 3.8 Max 090256.0
  4. #4Muse Spark 1.355.5
  5. #5Qwen 3.8 Flash Next53.6
  6. #20GPT 5.6 Luna42.1
  7. #22DeepSeek V4 Pro 081341.3

Epoch Capabilities Index164 models ranked

  1. #1GPT-6 Astra169.1
  2. #2Claude Opus 5.5168.4
  3. #3GPT-6.1 Terra168.1
  4. #4GPT-6.1 Sol167.8
  5. #5Claude Sonnet 5.5166.7
  6. #29GPT 5.6 Luna156.7
  7. #34DeepSeek V4 Pro 0813155.9
Agentic
Artificial Analysis Agentic Indexmatched by effort level
41.3
42.1 (best)
Coding
Artificial Analysis Coding Indexmatched by effort level
68.8
71.4 (best)
Cost
Artificial Analysis Evaluation Cost (USD)matched by effort level · lower is better
$1,122
$319.93 (best)
Artificial Analysis Evaluation Cost (USD)matched by effort level · lower is better
$1,402
$334.35 (best)
General
23.1
23.8 (best)
311.5
311.6 (best)

Lab-reported results come from each lab’s own launch materials and may use different settings, so none is marked best. Independent results come from third-party evaluators.

Providers

Where each model runs on Phaseo, with standard-tier prices per 1M tokens. Providers that serve more of these models come first.

$1.32 in · $3.96 out1.05M context
$0.20 in · $1.20 out (best)1.05M context
$1.32 in · $3.96 out1.05M context
$0.20 in · $1.20 out (best)1.05M context
$1.65 in · $4.95 out$10.00 per 1K requests Web search1M context
$0.20 in · $1.20 out (best)from $10.00 per 1K requests Web search1M context
$0.561 in · $1.683 out1M context
—
—
$0.20 in · $1.20 out$10.00 per 1K requests Native web search requests1.05M context · Standard, Batch, Flex, Priority
$0.66 in · $1.98 out1M context
—
—
$0.20 in · $1.20 out1.05M context
$1.056 in · $3.168 out1M context
—
$1.31 in · $3.96 out1M context
—
$1.32 in · $3.96 out1.05M context · Standard, Batch, Flex
—
Also listed, not routed
11 providers
17 providers

To price the whole page on one of these providers, pick it under the model’s name at the top.

Details

Knowledge cutoff
Not published
Feb 2026
Status
Available
Available
Licence
MIT
Proprietary
Subscription plans
None mapped
21 plansChatGPT Business, ChatGPT Business Codex, ChatGPT Business Premium…

DeepSeek V4 Pro 0813 vs GPT 5.6 Luna: side-by-side summary

DeepSeek V4 Pro 0813 and GPT 5.6 Luna are both available through the Phaseo API, so switching between them is a change of model id rather than a new integration.

DeepSeek V4 Pro 0813 is from DeepSeek. It has a 1,000,000-token context window. On its cheapest route it costs $0.561 per 1M input tokens and $1.683 per 1M output tokens.

GPT 5.6 Luna is from OpenAI. It has a 1,050,000-token context window. On its cheapest route it costs $0.20 per 1M input tokens and $1.20 per 1M output tokens.

DeepSeek V4 Pro 0813 model details, providers and pricingGPT 5.6 Luna model details, providers and pricing

DeepSeek V4 Pro 0813 vs GPT 5.6 Luna at a glance

DeepSeek V4 Pro 0813 and GPT 5.6 Luna compared on price, context window and benchmark score
AttributeDeepSeek V4 Pro 0813GPT 5.6 Luna
LabDeepSeekOpenAI
Input price per 1M tokens$0.561$0.20
Output price per 1M tokens$1.683$1.20
Context window1,000,000 tokens1,050,000 tokens
Max output384,000 tokens128,000 tokens
Artificial Analysis Intelligence Index23.1 (#32)23.8 (#31)

Prices are each model's cheapest standard route on Phaseo. Benchmark ranks use each model's best-scoring evaluated setting.

Frequently asked questions

Which is cheaper, DeepSeek V4 Pro 0813 or GPT 5.6 Luna?

GPT 5.6 Luna is cheaper for both input and output tokens. DeepSeek V4 Pro 0813 costs $0.561 per 1M input tokens and $1.683 per 1M output tokens; GPT 5.6 Luna costs $0.20 and $1.20, each on its cheapest standard route on Phaseo.

Which has the longer context window, DeepSeek V4 Pro 0813 or GPT 5.6 Luna?

GPT 5.6 Luna has the longer context window at 1,050,000 tokens, compared with 1,000,000 tokens for DeepSeek V4 Pro 0813.

Which scores higher on the Artificial Analysis Intelligence Index, DeepSeek V4 Pro 0813 or GPT 5.6 Luna?

GPT 5.6 Luna scores higher on the Artificial Analysis Intelligence Index. GPT 5.6 Luna scores 23.8, ranked #31 of 50. DeepSeek V4 Pro 0813 scores 23.1, ranked #32 of 50.

Can I use DeepSeek V4 Pro 0813 and GPT 5.6 Luna through one API?

Yes. Both are served through the Phaseo API, so you can switch between them by changing the model id.

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