LLM Comparison

GPT-5.4 Nano vs Claude Opus 4.6

Side-by-side specs, pricing & capabilities · Updated April 2026

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2/6 models
Same tier:
 OpenAIGPT-5.4 NanoAnthropicClaude Opus 4.6
OrganizationOpenAIOpenAIAnthropicAnthropic
OpenTools Score
73
4.9
FamilyGPTClaude
StatusCurrentCurrent
Release DateMar 2026Feb 2026
Context Window400K tokens1.0M tokens
Input Price$0.20/M tokens$5.00/M tokens
Output Price$1.25/M tokens$25.00/M tokens
Pricing NotesCache read: $0.0200/M tokensCache read: $0.5000/M tokens
Capabilities
textvisioncode
textvisioncodetool-use
Max Output128K tokens128K tokens
API Identifieropenai/gpt-5.4-nanoanthropic/claude-opus-4.6
Benchmarks
MMLU—89.8
HumanEval—91.5
MATH—84.9
GPQA—72.4
 View GPT-5.4 NanoView Claude Opus 4.6

Cost Calculator

Enter your expected monthly token usage to compare costs.

ModelInputOutputTotal / movs Best
GPT-5.4 NanoCheapest$0.20$0.63$0.83—
Claude Opus 4.6$5.00$12.50$17.50+2021%

OpenAI

GPT-5.4 Nano

GPT-5.4 Nano is a multimodal llm from OpenAI. Supports up to 400,000 token context window. Available from $0.20/M input tokens.

Anthropic

Claude Opus 4.6

Claude Opus 4.6 is a multimodal llm from Anthropic. Supports up to 1,000,000 token context window. Achieves 89.8% on MMLU. Available from $5.00/M input tokens.

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