DeepSeek V4 Flash 0731 vs Seed 1.6
Detailed technical comparison between DeepSeek V4 Flash 0731 (DeepSeek) and Seed 1.6 (ByteDance). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
DeepSeek V4 Flash 0731
1,048,576 tokensTie
Equal CapabilityTie
Equal SpeedDeepSeek V4 Flash 0731
$0.09 / MTokDeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 is an advanced artificial intelligence model engineered by DeepSeek. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, DeepSeek V4 Flash 0731 represents a key architectural iteration in the DeepSeek model family. First released in 2026-07-31, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,048,576 tokens (approximately 1,398 words), DeepSeek V4 Flash 0731 processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.
Seed 1.6
Seed 1.6 is an advanced artificial intelligence model engineered by ByteDance. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Seed 1.6 represents a key architectural iteration in the ByteDance model family. First released in 2025-12-23, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 262,144 tokens (approximately 350 words), Seed 1.6 processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.
Technical Specifications
🏆 = Superior Spec| Specification | DeepSeek V4 Flash 0731 | Seed 1.6 |
|---|---|---|
| Provider | DeepSeek | ByteDance |
| Context Window | 1,048,576 tokens🏆 | 262,144 tokens |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | self hostable | managed api |
| Production Stability | Beta Access (est.) | Stable GA (est.) |
| API Available | Yes | Yes |
| Released Date | 2026-07-31 | 2025-12-23 |
API Pricing Comparison
Input Price per Million Tokens
DeepSeek V4 Flash 0731
$0.09
Seed 1.6
$0.25
Output Price per Million Tokens
DeepSeek V4 Flash 0731
$0.18
Seed 1.6
$2.00
💡 Cost Ratio: DeepSeek V4 Flash 0731 is 2.8x cheaper per input token than Seed 1.6.
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Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
DeepSeek V4 Flash 0731 Quirks & Gotchas
No developer gotchas reported.
Seed 1.6 Quirks & Gotchas
No developer gotchas reported.
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