GPT-5.6 Sol vs DeepSeek V4.1 Flash
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
GPT-5.6 Sol
B
DeepSeek V4.1 Flash
- ProviderOpenAIDeepSeek
- Rank#10Higher rank#17
- TierSS
- Score87.3Higher score85.7
- PriceAPI $4 input / $20 output per 1M tokens (promotional rate through at least Nov 21, 2026)API $0.30 input / $1.20 output per 1M tokens at peak ($0.15 / $0.60 off-peak); MIT open weightsLower price tier
- TaglineThe frontier-capability tier of OpenAI's GPT-5.6 family, aimed at coding agents and demanding professional work, with a 1.05M-token context window.DeepSeek's September 2026 Flash model on a new architecture, adding native image understanding and a 1M-token context at lower API prices.
| Attribute | GPT-5.6 Sol | DeepSeek V4.1 Flash |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Rank | #10Higher rank | #17 |
| Tier | S | S |
| Score | 87.3Higher score | 85.7 |
| Price | API $4 input / $20 output per 1M tokens (promotional rate through at least Nov 21, 2026) | API $0.30 input / $1.20 output per 1M tokens at peak ($0.15 / $0.60 off-peak); MIT open weightsLower price tier |
| Tagline | The frontier-capability tier of OpenAI's GPT-5.6 family, aimed at coding agents and demanding professional work, with a 1.05M-token context window. | DeepSeek's September 2026 Flash model on a new architecture, adding native image understanding and a 1M-token context at lower API prices. |