Model Comparison

DeepSeek-R1 vs Kimi-K2 Thinking

Compare the listed model data for DeepSeek-R1 by DeepSeek and Kimi-K2 Thinking by Moonshot AI. Benchmark and pricing records are not a controlled test and may change.

Data last updated: 2026-10-16. Verify current model details with each provider.

What the listed data says

DeepSeek-R1: 128K tokens; Kimi-K2 Thinking: 128K tokens. The listed context-window values are equal. DeepSeek-R1 is listed for coding, reasoning, long-context tasks; Kimi-K2 Thinking is listed for reasoning. Shared catalog benchmark entries: GPQA Diamond: DeepSeek-R1 71.5%; Kimi-K2 Thinking 78.2%; SWE-bench Verified: DeepSeek-R1 49.2%; Kimi-K2 Thinking 67.3%; LiveCodeBench: DeepSeek-R1 65.9%; Kimi-K2 Thinking 77.8%. These records are reference data, not a controlled head-to-head test; verify current pricing and specifications with each provider.

Computed differences from catalog data

  • The listed context windows are 128K tokens and 128K tokens; the larger is 1× the smaller.
  • On shared numeric benchmark entries, GPQA Diamond: DeepSeek-R1 − Kimi-K2 Thinking = -6.7 percentage points (71.5% vs 78.2%); SWE-bench Verified: DeepSeek-R1 − Kimi-K2 Thinking = -18.1 percentage points (49.2% vs 67.3%); LiveCodeBench: DeepSeek-R1 − Kimi-K2 Thinking = -11.9 percentage points (65.9% vs 77.8%).
  • The first listed parameter quantities are 671B total (37B active via MoE) and 1T total (32B active); the larger quantity is 1.49× the smaller. Total and active MoE parameters are not directly equivalent.
  • The catalog release dates are January 2025 and July 2025, about 6 months apart at the precision supplied.

Cost example: 1M input and 1M output tokens

A cost example for 1M input plus 1M output tokens cannot be calculated reliably because separate numeric input and output rates are not listed for both models.

Choose DeepSeek-R1 if…

Choose DeepSeek-R1 when your task aligns with catalog-listed uses or strengths such as Competition mathematics and proof verification, Advanced software engineering: debugging complex systems, production-grade algorithms, Scientific research in physics, chemistry, biology, Enterprise AI agents needing transparent, auditable reasoning.

Choose Kimi-K2 Thinking if…

Choose Kimi-K2 Thinking when your task aligns with catalog-listed uses or strengths such as Complex mathematical proofs, Research-grade scientific reasoning, Auditable AI reasoning workflows, 84.1% AIME 2025 — near-human on elite competition mathematics.

DeepSeek-R1

Browse DeepSeek models

Groundbreaking open reasoning model — rivals OpenAI o1 on math, science, and coding. Transparent chain-of-thought reasoning.

Parameters: 671B total (37B active via MoE)

Context: 128K tokens

Catalog pricing: Open source MIT license — free to self-host. DeepSeek API: $0.14/MTok input (cache hit), $0.55/MTok input, $2.19/MTok output

DeepSeek Coding · Reasoning · Long Context Open Source

View DeepSeek-R1 model profile

Kimi-K2 Thinking

Browse Moonshot AI models

Kimi-K2 with extended thinking — chain-of-thought for deep math, science, and complex problem solving.

Parameters: 1T total (32B active)

Context: 128K tokens

Catalog pricing: Moonshot API: beta

Moonshot AI Reasoning Open Source

View Kimi-K2 Thinking model profile

Feature Comparison — DeepSeek-R1 vs Kimi-K2 Thinking

Catalog specifications for DeepSeek-R1 and Kimi-K2 Thinking
Specification DeepSeek-R1 Kimi-K2 Thinking
Provider DeepSeek Moonshot AI
Parameters 671B total (37B active via MoE) 1T total (32B active)
Context window 128K tokens 128K tokens
Maximum output Not listed Not listed
Catalog pricing Open source MIT license — free to self-host. DeepSeek API: $0.14/MTok input (cache hit), $0.55/MTok input, $2.19/MTok output Moonshot API: beta
Listed input/output cost per 1M tokens input $0.55, output $2.19 per 1M tokens Separate numeric input/output rates not listed
License MIT Kimi K2 Model License
Coding support Listed Not listed
Reasoning support Listed Listed
Vision input Not listed Not listed
Multimodal Not listed Not listed
Open weights Yes Yes
Benchmark: GPQA Diamond 71.5% 78.2%
Benchmark: SWE-bench Verified 49.2% 67.3%
Benchmark: LiveCodeBench 65.9% 77.8%

Figures are transcribed from LITHOVEX model records. Benchmark versions and evaluation setups may differ; pricing and specifications can change. Check each provider's current documentation before making a decision.

Frequently Asked Questions

What is different between DeepSeek-R1 and Kimi-K2 Thinking?
DeepSeek-R1: 128K tokens; Kimi-K2 Thinking: 128K tokens. The listed context-window values are equal. DeepSeek-R1 is listed for coding, reasoning, long-context tasks; Kimi-K2 Thinking is listed for reasoning. Shared catalog benchmark entries: GPQA Diamond: DeepSeek-R1 71.5%; Kimi-K2 Thinking 78.2%; SWE-bench Verified: DeepSeek-R1 49.2%; Kimi-K2 Thinking 67.3%; LiveCodeBench: DeepSeek-R1 65.9%; Kimi-K2 Thinking 77.8%. These records are reference data, not a controlled head-to-head test; verify current pricing and specifications with each provider.
What benchmark values are listed for DeepSeek-R1 and Kimi-K2 Thinking?
GPQA Diamond: DeepSeek-R1 71.5%; Kimi-K2 Thinking 78.2%; SWE-bench Verified: DeepSeek-R1 49.2%; Kimi-K2 Thinking 67.3%; LiveCodeBench: DeepSeek-R1 65.9%; Kimi-K2 Thinking 77.8%. The catalog values may use different versions and evaluation setups, so they are reference points rather than a controlled head-to-head result.
Which model has the larger listed context window?
DeepSeek-R1: 128K tokens; Kimi-K2 Thinking: 128K tokens. The listed context-window values are equal.
What are the listed costs per million tokens for DeepSeek-R1 and Kimi-K2 Thinking?
DeepSeek-R1: input $0.55, output $2.19 per 1M tokens (Open source MIT license — free to self-host. DeepSeek API: $0.14/MTok input (cache hit), $0.55/MTok input, $2.19/MTok output). Kimi-K2 Thinking: Separate numeric input/output rates not listed (Moonshot API: beta). Where separate numeric input and output rates are available, the worked example uses 1M input plus 1M output tokens. Confirm current terms with each provider.
How far apart are the listed release dates for DeepSeek-R1 and Kimi-K2 Thinking?
The catalog lists DeepSeek-R1 as January 2025 and Kimi-K2 Thinking as July 2025, about 6 months apart at the precision supplied.
When was the comparison data last updated?
The model catalog records 2026-10-16 as its data update date. Provider specifications and prices may have changed since then.
How should I choose between DeepSeek-R1 and Kimi-K2 Thinking?
Compare the listed specifications and capabilities, review the benchmark notes, then test both with the same representative prompt for your task. This page does not claim a universal winner.

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