Claude Sonnet 5 vs DeepSeek-V4-Flash-Max: Specs & Benchmark Comparison
| Characteristic | Claude Sonnet 5 | DeepSeek-V4-Flash-Max |
|---|---|---|
| Company | Anthropic | DeepSeek |
| Release Date | June 30, 2026 | April 23, 2026 |
| Parameters | — | 284B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 64K | 393K |
| Input Price / 1M | $2.00 | $0.14 |
| Output Price / 1M | $10.00 | $0.28 |
| Average Score | 0.6 | 0.9 |
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: Claude Sonnet 5 — 0.6, DeepSeek-V4-Flash-Max — 0.9.
API Cost
DeepSeek-V4-Flash-Max is 28.6x cheaper: input $0.14/1M vs $2.00/1M tokens.
Context Window
Same context size: 1M tokens.
Recency
Claude Sonnet 5 is newer: released 6/30/2026 vs 4/23/2026.
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Frequently Asked Questions
Which is better for coding — Claude Sonnet 5 or DeepSeek-V4-Flash-Max?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Sonnet 5 or DeepSeek-V4-Flash-Max?
DeepSeek-V4-Flash-Max is cheaper for input: $0.14 per 1M tokens vs $2.00.
Which has a larger context window — Claude Sonnet 5 or DeepSeek-V4-Flash-Max?
Claude Sonnet 5 supports a larger context: 1,000,000 tokens vs 1,000,000.
The Claude Sonnet 5 and DeepSeek-V4-Flash-Max comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Sonnet 5 or DeepSeek-V4-Flash-Max page. See also the complete list of AI model comparisons.