DeepSeek-V4-Flash-0731 vs GPT-6 Astra: Specs & Benchmark Comparison

CharacteristicDeepSeek-V4-Flash-0731GPT-6 Astra
CompanyDeepSeekOpenAI
Release DateJuly 31, 2026September 3, 2026
Parameters304B
MultimodalNoYes
Context (input)1.0M1.1M
Context (output)393K128K
Input Price / 1M$0.14$10.00
Output Price / 1M$0.28$50.00
Average Score0.70.7

Verdict

GPT-6 Astra leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: DeepSeek-V4-Flash-0731 — 0.7, GPT-6 Astra — 0.7.

API Cost

DeepSeek-V4-Flash-0731 is 142.9x cheaper: input $0.14/1M vs $10.00/1M tokens.

Context Window

GPT-6 Astra supports a larger context: 1M vs 1M tokens.

Recency

GPT-6 Astra is newer: released 9/3/2026 vs 7/31/2026.

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Frequently Asked Questions

Which is better for coding — DeepSeek-V4-Flash-0731 or GPT-6 Astra?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — DeepSeek-V4-Flash-0731 or GPT-6 Astra?
DeepSeek-V4-Flash-0731 is cheaper for input: $0.14 per 1M tokens vs $10.00.
Which has a larger context window — DeepSeek-V4-Flash-0731 or GPT-6 Astra?
GPT-6 Astra supports a larger context: 1,050,000 tokens vs 1,000,000.

The DeepSeek-V4-Flash-0731 and GPT-6 Astra comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the DeepSeek-V4-Flash-0731 or GPT-6 Astra page. See also the complete list of AI model comparisons.