GPT-6 Astra vs DeepSeek V4 Pro 0423
The most expensive closed flagship against the open-weight model that answers for about a thirtieth of the output price -- and the vision gap that comes with it.
What the numbers say
- DeepSeek V4 Pro 0423 is about 120x cheaper on output tokens (5.0 vs 600 credits per 1M).
- GPT-6 Astra accepts images; DeepSeek V4 Pro 0423 is text-only.
- GPT-6 Astra is the newer release (September 2026 vs April 2026).
Derived from the live registry Zeplik routes and bills against. Credits: 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin.
Side by side
GPT-6 Astra
OpenAI
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.
- Provider
- OpenAI
- Context window
- 1.1M tokens
- Input price
- 120 credits / 1M tokens ($10.00 raw)
- Output price
- 600 credits / 1M tokens ($50.00 raw)
- Vision (image input)
- Yes
- Tool calling
- Yes
- Extended reasoning
- No
Best for
- Hard problems where answer quality matters more than cost: strategy, analysis, difficult writing
- Very long documents and codebases: a 1.1M-token window fits entire books or repositories in one conversation
- Working with images: screenshots, charts, photos and scanned documents alongside text
- Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows
DeepSeek V4 Pro 0423
DeepSeek
DeepSeek V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window.
- Provider
- DeepSeek
- Context window
- 1.0M tokens
- Input price
- 2.5 credits / 1M tokens ($0.21 raw)
- Output price
- 5.0 credits / 1M tokens ($0.42 raw)
- Vision (image input)
- No
- Tool calling
- Yes
- Extended reasoning
- No
Best for
- Everyday chat and drafting on an open-weight model with transparent lineage
- Very long documents and codebases: a 1.0M-token window fits entire books or repositories in one conversation
- Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows
Try both on Zeplik
The honest answer to most model debates is to run your own prompt on both. Zeplik puts GPT-6 Astra and DeepSeek V4 Pro 0423 in the same chat, so you can switch mid-conversation and compare answers on the work you actually do.
Frequently asked questions
- What is the difference between GPT-6 Astra and DeepSeek V4 Pro 0423?
- DeepSeek V4 Pro 0423 is about 120x cheaper on output tokens (5.0 vs 600 credits per 1M). GPT-6 Astra accepts images; DeepSeek V4 Pro 0423 is text-only. GPT-6 Astra is the newer release (September 2026 vs April 2026).
- Is GPT-6 Astra or DeepSeek V4 Pro 0423 cheaper?
- DeepSeek V4 Pro 0423 is cheaper: 5.0 credits per million output tokens against 600. 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin.
- Which has the larger context window, GPT-6 Astra or DeepSeek V4 Pro 0423?
- GPT-6 Astra, at 1.1M tokens against 1.0M.
- Can I use both GPT-6 Astra and DeepSeek V4 Pro 0423 on Zeplik?
- Yes. Zeplik is a multi-model chat, so both sit behind one account and you can switch between them mid-conversation to compare answers on your own prompt.
- Do GPT-6 Astra and DeepSeek V4 Pro 0423 need a paid plan?
- Both need a paid plan (Plus or above). Usage is then billed in credits from your monthly allowance.
Related comparisons
- Claude Opus 5.5 vs GPT-6 AstraAnthropic's and OpenAI's deep-reasoning flagships, eighteen days apart -- and Astra asks two and a half times Opus 5.5's price for a window only five percent larger.
- Claude Opus 5.5 vs DeepSeek V4 Pro 0423Anthropic's newest premium tier against the open-weight model that answers for about a fifteenth of the output price -- and cannot read an image at all.
- GPT-6 Sol vs GPT-6 AstraThe upgrade decision inside the GPT-6 line: Astra costs five times Sol for the same 1,050,000-token window, so the question is which work is hard enough to need it.
- GPT-5.6 Sol vs DeepSeek V4 Pro 0423Closed flagship against the open-weight challenger that undercuts it dramatically on price.
- GPT-6 Astra vs GPT-5.6 SolThe upgrade decision almost every OpenAI user is actually making: GPT-6 Astra costs five times Sol per token for the same 1,050,000-token window, so the question is which work is hard enough to need it.
- Claude Sonnet 5 vs DeepSeek V4 Pro 0423Anthropic's flagship against the strongest open-weight alternative for a fraction of the cost.
Explore Zeplik
- 467 AI skillsReady-to-run expert methods that run on GPT-6 Astra, DeepSeek V4 Pro 0423 or any other model.
- 997 integrationsConnect Gmail, Slack, GitHub, Notion and hundreds more so the assistant can work in your apps.
- Simple pricingPlus, Pro and Max plans with a monthly credit allowance that works across every model.