Shortcut ChatShortcut Chat
Get started

AI model comparison

DeepSeek V4.1 Flash 1017 vs GPT-6 Astra

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name.

Input / 1M
$0.15
Output / 1M
$0.60
Context
1.05M

GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.

Input / 1M
$10
Output / 1M
$50
Context
1.05M

Comparing image generators? Compare image models

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

deepseek logo

DeepSeek V4.1 Flash 1017

75x cheaper for a typical chat

Higher intelligence score

openai logo

GPT-6 Astra

52.7 vs 39.5 on Artificial Analysis

Larger context window

openai logo

GPT-6 Astra

1.05M vs 1.05M tokens

Newer release

deepseek logo

DeepSeek V4.1 Flash 1017

Released October 17, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

deepseek logoDeepSeek V4.1 Flash 101739.5
openai logoGPT-6 Astra52.7

Coding index

deepseek logoDeepSeek V4.1 Flash 1017Not available
openai logoGPT-6 Astra76.9

Agentic index

deepseek logoDeepSeek V4.1 Flash 1017Not available
openai logoGPT-6 Astra51

Pricing

DeepSeek V4.1 Flash 1017 vs GPT-6 Astra API pricing

Per-token API rates. Cheaper option highlighted.

Metricdeepseek logoDeepSeek V4.1 Flash 1017openai logoGPT-6 Astra
Input tokensPer 1M tokens$0.15$10
Output tokensPer 1M tokens$0.60$50
Cached input (read)Per 1M tokens$0.00$1
Cache writePer 1M tokensNot available$12.50
Long-context pricingPer 1M tokens, for very long promptsSame rate at any length$20 in / $75 out above 272K
Web searchPer requestNot available$0.01

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

deepseek logoDeepSeek V4.1 Flash 1017$0.60
openai logoGPT-6 Astra$45

Coding task

30K in, 4K out

deepseek logoDeepSeek V4.1 Flash 1017$6.90$2.49 cached
openai logoGPT-6 Astra$500$230 cached

Long document summary

150K in, 2K out

deepseek logoDeepSeek V4.1 Flash 1017$23.70$1.65 cached
openai logoGPT-6 Astra$1600$250 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricdeepseek logoDeepSeek V4.1 Flash 1017openai logoGPT-6 Astra
Context window1.05M tokens1.05M tokens
Max output393K tokens128K tokens
Input typesImage, TextFile, Image, Text
Output typesTextText
Reasoning effort levelsMax, High, Low, NoneMax, Extra high, High, Medium, Low
Default reasoning effortHighMedium
Release dateOctober 17, 2026September 4, 2026

Features

Supported features

API features available for each model.

Metricdeepseek logoDeepSeek V4.1 Flash 1017openai logoGPT-6 Astra
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedNot supported
Stop sequencesSupportedNot supported
Deterministic seedSupportedSupported
Verbosity controlNot supportedSupported

Our take

DeepSeek V4.1 Flash 1017 is 75x cheaper for a typical chat. GPT-6 Astra scores higher on the Artificial Analysis Intelligence Index (52.7 vs 39.5). GPT-6 Astra has the larger context window (1.05M vs 1.05M tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is DeepSeek V4.1 Flash 1017 or GPT-6 Astra cheaper?

DeepSeek V4.1 Flash 1017 is cheaper for a typical chat (2K input tokens and 500 output tokens). DeepSeek V4.1 Flash 1017 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens, while GPT-6 Astra costs $10 per 1M input tokens and $50 per 1M output tokens.

Which has a bigger context window, DeepSeek V4.1 Flash 1017 or GPT-6 Astra?

GPT-6 Astra supports up to 1.05M tokens of context, compared with 1.05M for DeepSeek V4.1 Flash 1017.

Is DeepSeek V4.1 Flash 1017 smarter than GPT-6 Astra?

On the Artificial Analysis Intelligence Index, DeepSeek V4.1 Flash 1017 scores 39.5 and GPT-6 Astra scores 52.7, putting GPT-6 Astra ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use DeepSeek V4.1 Flash 1017 and GPT-6 Astra at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see DeepSeek V4.1 Flash 1017 and GPT-6 Astra answer side by side and keep the better response.

deepseek logoopenai logo

Why choose? Ask both.

Send one prompt to DeepSeek V4.1 Flash 1017 and GPT-6 Astra at the same time. Compare the answers side by side and keep the best one.

Get startedSee a preview