Claude 2.1: Intelligence, Performance & Price Analysis
Analysis of Anthropic's Claude 2.1 and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more. Click on any model to compare API providers for that model. For more details including relating to our methodology, see our FAQs.
Anthropic has launched a newer model, Claude 3 Sonnet. We suggest considering this model instead of Claude 2.1. See the following pages for a comparison of Claude 3 Sonnet to other models and Claude 3 Sonnet API provider benchmarks.
Comparison Summary
Intelligence:
Claude 2.1 is of lower intelligence compared to average, with Artificial Analysis Intelligence Index of 10.
Price:Speed:Latency:Context Window:Claude 2.1 has a smaller context windows than average, with a context window of 200k tokens.
Highlights
Intelligence
Artificial Analysis Intelligence Index; Higher is better
Estimate (independent evaluation forthcoming)
Speed
Output Tokens per Second; Higher is better
Price
USD per 1M Tokens; Lower is better
Parallel Queries:
Prompt Length:
Claude 2.1 Model Details
Comparisons to Claude 2.1
- Claude 2.1
gpt-oss-20B (high)- gpt-oss-120B (high)
- GPT-5 (minimal)
- GPT-5 (high)
- GPT-4.1
- o3
Llama 4 Maverick
Gemini 2.5 Flash- Gemini 2.5 Pro
- Claude 4 Sonnet
- Claude 4.1 Opus
Mistral Medium 3.1
DeepSeek R1 0528- DeepSeek V3.1
- DeepSeek V3.1
Grok 4- Grok Code Fast 1
Solar Pro 2
Llama Nemotron Super 49B v1.5
Kimi K2 0905
EXAONE 4.0 32B
GLM-4.5
Qwen3 235B 2507
Further details
R1 1776
Nova Premier
Phi-4
LFM2 1.2B
MiniMax-Text-01
Granite 3.3 Instruct 8B
Reka Flash 3
Hermes 4 - Llama-3.1 405B
Aya Expanse 32B
Jamba 1.7 Mini
OpenChat 3.5 (1210)
DBRX Instruct
Llama 3.1 Tulu3 405B
Arctic Instruct
Yi-Large