Side-by-side comparison

Pick up to 4 models. Differences are what matter for picking.

Models
Spec
DeepSeek
DeepSeek-V3.1
Verified 2026-04-15
DescriptionOpen MoE with hybrid thinking/non-thinking modes. Excellent price-to-performance.
Released2025-08-21
Knowledge cutoff2024-07
Context window128K
Max output8K
Input $/1M$0.270
Output $/1M$1.10
Speed tierStandard
Reasoning4/5
Coding5/5
Multilingual4/5
Modalities in
Text
Modalities out
Text
Tool useYes
JSON modeYes
Open weightsYes
Best use cases
Coding
Reasoning
Agents
Structured Output
Best personas
Startup
Developer Tools
Research
Weak at
  • · vision
  • · data-residency-sensitive enterprises
Compliance
HIPAA-eligibleSOC 2GDPRISO 27001FedRAMPChina-based hosting raises data residency questions for EU/US enterprises.
Data policyReview provider TOS; self-host weights for full control.
Sources
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