DeepSeek V4.1 Flash vs Claude Sonnet 5
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
DeepSeek V4.1 Flash
B
Claude Sonnet 5
- ProviderDeepSeekAnthropic
- Rank#17Higher rank#20
- TierSHigher tierA
- Score85.7Higher score84.8
- PriceAPI $0.30 input / $1.20 output per 1M tokens at peak ($0.15 / $0.60 off-peak); MIT open weightsLower price tierAPI $2 input / $10 output per 1M tokens (legacy model)
- TaglineDeepSeek's September 2026 Flash model on a new architecture, adding native image understanding and a 1M-token context at lower API prices.Anthropic's June 2026 Sonnet model for large-scale coding and agentic work, now a legacy model succeeded by Sonnet 5.5 (September 2026) at the same price.
| Attribute | DeepSeek V4.1 Flash | Claude Sonnet 5 |
|---|---|---|
| Provider | DeepSeek | Anthropic |
| Rank | #17Higher rank | #20 |
| Tier | SHigher tier | A |
| Score | 85.7Higher score | 84.8 |
| Price | API $0.30 input / $1.20 output per 1M tokens at peak ($0.15 / $0.60 off-peak); MIT open weightsLower price tier | API $2 input / $10 output per 1M tokens (legacy model) |
| Tagline | DeepSeek's September 2026 Flash model on a new architecture, adding native image understanding and a 1M-token context at lower API prices. | Anthropic's June 2026 Sonnet model for large-scale coding and agentic work, now a legacy model succeeded by Sonnet 5.5 (September 2026) at the same price. |