Compare Claude 2 by Anthropic against DeepSeek R1 by DeepSeek, context windows of 100K vs 128K, tested across 5 shared challenges. Updated April 2026.
Claude 2 and DeepSeek R1 are both competitive models. Claude 2 costs $11.02/M input tokens vs $0.55/M for DeepSeek R1. Context windows: 100K vs 128K tokens. Compare their real outputs side by side below.
Claude 2 is made by anthropic while DeepSeek R1 is from deepseek. Claude 2 has a 100K token context window compared to DeepSeek R1's 128K. On pricing, Claude 2 costs $11.02/M input tokens vs $0.55/M for DeepSeek R1.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
DeepSeek R1 is 15x cheaper per token — worth considering if cost matters.
DeepSeek R1 uses 52.0x more hedging
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare Claude 2 by Anthropic against DeepSeek R1 by DeepSeek, context windows of 100K vs 128K, tested across 5 shared challenges. Updated April 2026.
Claude 2 and DeepSeek R1 are both competitive models. Claude 2 costs $11.02/M input tokens vs $0.55/M for DeepSeek R1. Context windows: 100K vs 128K tokens. Compare their real outputs side by side below.
Claude 2 is made by anthropic while DeepSeek R1 is from deepseek. Claude 2 has a 100K token context window compared to DeepSeek R1's 128K. On pricing, Claude 2 costs $11.02/M input tokens vs $0.55/M for DeepSeek R1.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
DeepSeek R1 is 15x cheaper per token — worth considering if cost matters.
DeepSeek R1 uses 52.0x more hedging
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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