← All Models

Claude Opus 5 vs GPT-4.1 Nano

GPT-4.1 Nano leads in 2 of 8 categories

Arena ELO

Tie

Cheaper

GPT-4.1 Nano

Faster

Tie

Detailed Comparison

CategoryClaude Opus 5GPT-4.1 Nano
ProviderAnthropic OpenAI
Context Window200K WIN128K
Input Price ($/1M)$15 $0.1 WIN
Output Price ($/1M)$75 $0.4 WIN
Arena ELON/A N/A
CodingN/A N/A
ReasoningN/A N/A
Speed (tokens/sec)N/A N/A
Open SourceNo No

Frequently Asked Questions

Which is cheaper, Claude Opus 5 or GPT-4.1 Nano?

GPT-4.1 Nano is approximately 99% cheaper than Claude Opus 5 per million tokens.

Which has a larger context window?

Claude Opus 5 supports 200K context, while GPT-4.1 Nano supports 128K.

Is Claude Opus 5 or GPT-4.1 Nano open source?

Claude Opus 5 is proprietary. GPT-4.1 Nano is proprietary.

Related Articles

Claude voice mode now does more work in chat

Claude Opus 5 undercuts Fable 5 on price

Claude Code turns chat into terminal work

Anthropic extends Claude Fable access after GPT-5.6

Claude's J-space is not consciousness, but it matters

Claude Code MCP setup that connects real tools

More Comparisons

Claude Opus 5 vs Claude Opus 4.5Claude Opus 5 vs Llama 4 ScoutClaude Opus 5 vs Claude Haiku 4.5Claude Opus 5 vs Qwen 3.6Claude Opus 5 vs Kimi K2.7 CodeClaude Opus 5 vs Llama 4 MaverickClaude Opus 5 vs GPT-5.3-CodexClaude Opus 5 vs Gemma 4GPT-4.1 Nano vs Claude Opus 4.5GPT-4.1 Nano vs Llama 4 ScoutGPT-4.1 Nano vs Claude Haiku 4.5GPT-4.1 Nano vs Qwen 3.6GPT-4.1 Nano vs Kimi K2.7 CodeGPT-4.1 Nano vs Llama 4 MaverickGPT-4.1 Nano vs GPT-5.3-CodexGPT-4.1 Nano vs Gemma 4