LLM Comparison

Claude Opus 5 vs Inflection 3 Pi

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

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2/6 models

Same tier:

	Claude Opus 5	Inflection 3 Pi
Organization	Anthropic	Inflection AI
OpenTools Score	92 6.1
Family	Claude Opus	Inflection
Status	Current	Current
Release Date	Jul 2026	Oct 2024
Context Window	1.0M tokens	8K tokens
Input Price	$5.00/M tokens	$2.50/M tokens
Output Price	$25.00/M tokens	$10.00/M tokens
Pricing Notes	Claude Opus 5 is priced at $5 per million input tokens and $25 per million output tokens; fast mode is priced separately at Fable-level rates.	—
Capabilities	textvisionreasoningcodingtool-useagentslong-context	textcode
Max Output	128K tokens	1K tokens
API Identifier	`claude-opus-5`	`inflection/inflection-3-pi`
Benchmarks
Artificial Analysis Intelligence Index	61artificial-analysis	—
Artificial Analysis Intelligence Index v4.1.1	63artificial-analysis	—
Artificial Analysis Intelligence Index v4.3	51https://artificialanalysis.ai/models/claude-opus-5	—
GPQA Diamond	93.2323artificial-analysis	—
SciCode	56.3657artificial-analysis	—
Terminal-Bench 2.1	89.1386artificial-analysis	—
	View Claude Opus 5	View Inflection 3 Pi

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Input tokens / month

Output tokens / month

Model	Input	Output	Total / mo	vs Best
Inflection 3 PiCheapest	$2.50	$5.00	$7.50	—
Claude Opus 5	$5.00	$12.50	$17.50	+133%

Anthropic

Claude Opus 5

Claude Opus 5 is Anthropic's Opus-class model for complex agentic coding and enterprise work. Official Claude docs list the claude-opus-5 API ID, 1M token context window, 128k max output, adaptive thinking, and $5 input / $25 output pricing per million tokens.

Inflection AI

Inflection 3 Pi

Inflection 3 Pi is a large language model from Inflection AI. Supports up to 8,000 token context window. Available from $2.50/M input tokens.