DeepSeek-V4-Flash-Vision-Exp vs GPT-5.1 Codex High: Specs & Benchmark Comparison
| Characteristic | DeepSeek-V4-Flash-Vision-Exp | GPT-5.1 Codex High |
|---|---|---|
| Company | DeepSeek | OpenAI |
| Release Date | August 21, 2026 | November 11, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 400K |
| Context (output) | 393K | 128K |
| Input Price / 1M | $0.22 | $1.25 |
| Output Price / 1M | $0.66 | $10.00 |
| Average Score | 0.5 | 1.0 |
Verdict
DeepSeek-V4-Flash-Vision-Exp leads in 3 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: DeepSeek-V4-Flash-Vision-Exp — 0.5, GPT-5.1 Codex High — 1.0.
API Cost
DeepSeek-V4-Flash-Vision-Exp is 12.8x cheaper: input $0.22/1M vs $1.25/1M tokens.
Context Window
DeepSeek-V4-Flash-Vision-Exp supports a larger context: 1M vs 400K tokens.
Recency
DeepSeek-V4-Flash-Vision-Exp is newer: released 8/21/2026 vs 11/11/2025.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V4-Flash-Vision-Exp or GPT-5.1 Codex High?
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-Vision-Exp or GPT-5.1 Codex High?
DeepSeek-V4-Flash-Vision-Exp is cheaper for input: $0.22 per 1M tokens vs $1.25.
Which has a larger context window — DeepSeek-V4-Flash-Vision-Exp or GPT-5.1 Codex High?
DeepSeek-V4-Flash-Vision-Exp supports a larger context: 1,048,576 tokens vs 400,000.
The DeepSeek-V4-Flash-Vision-Exp and GPT-5.1 Codex High 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-Vision-Exp or GPT-5.1 Codex High page. See also the complete list of AI model comparisons.