DeepSeek-V4-Flash-0731 vs GPT-5.2: Specs & Benchmark Comparison
DeepSeek-V4-Flash-0731 is developed by DeepSeek, while GPT-5.2 comes from OpenAI. GPT-5.2 was released in December 2025, and DeepSeek-V4-Flash-0731 followed 7 months later in July 2026. DeepSeek-V4-Flash-0731 has a published size of about 304 billion parameters; OpenAI has not disclosed the parameter count of GPT-5.2.
We have 9 benchmark results for DeepSeek-V4-Flash-0731 and 24 benchmark results for GPT-5.2, but they overlap on a single test: Toolathlon, where DeepSeek-V4-Flash-0731 scores 70.0% against 46.3%.
DeepSeek-V4-Flash-0731 is the cheaper API at $0.14 per million input tokens and $0.28 per million output tokens, roughly 11 times cheaper than GPT-5.2 at $1.50 and $6. DeepSeek-V4-Flash-0731 takes the larger context window at 1M tokens, compared with 256K for GPT-5.2. DeepSeek-V4-Flash-0731 accepts text as input, while GPT-5.2 accepts text, images, audio, and video.
| Characteristic | DeepSeek-V4-Flash-0731 | GPT-5.2 |
|---|---|---|
| Company | DeepSeek | OpenAI |
| Release Date | July 31, 2026 | December 10, 2025 |
| Parameters | 304B | — |
| Multimodal | No | Yes |
| Context (input) | 1.0M | 256K |
| Context (output) | 393K | 128K |
| Input Price / 1M | $0.14 | $1.50 |
| Output Price / 1M | $0.28 | $6.00 |
| Average Score | 57.5% | 78.2% |
| Benchmarks | ||
| Toolathlon | 70.0% | 46.3% |
Visual Benchmark Comparison
Verdict
DeepSeek-V4-Flash-0731 leads in 3 out of 4 comparison categories.
Both models show comparable average scores: DeepSeek-V4-Flash-0731 — 0.6, GPT-5.2 — 0.8.
DeepSeek-V4-Flash-0731 is 17.9x cheaper: input $0.14/1M vs $1.50/1M tokens.
DeepSeek-V4-Flash-0731 supports a larger context: 1M vs 256K tokens.
DeepSeek-V4-Flash-0731 is newer: released 7/31/2026 vs 12/10/2025.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V4-Flash-0731 or GPT-5.2?
Which model is cheaper — DeepSeek-V4-Flash-0731 or GPT-5.2?
Which has a larger context window — DeepSeek-V4-Flash-0731 or GPT-5.2?
The DeepSeek-V4-Flash-0731 and GPT-5.2 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-5.2 page. See also the complete list of AI model comparisons.