LLM Comparison

Sonar Reasoning Pro vs Kimi K2.5

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

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2/6 models

Same tier:

	S Sonar Reasoning Pro	K Kimi K2.5
Organization	Perplexity AI	Moonshot AI
OpenTools Score
Family	Sonar	Kimi
Status	Current	Current
Release Date	Mar 2025	Jan 2026
Context Window	128K tokens	262K tokens
Input Price	$2.00/M tokens	$0.38/M tokens
Output Price	$8.00/M tokens	$1.72/M tokens
Pricing Notes	—	Cache read: $0.1913/M tokens
Capabilities	textvisioncodeextended-thinking	textvisioncode
Max Output	—	66K tokens
API Identifier	`perplexity/sonar-reasoning-pro`	`moonshotai/kimi-k2.5`
Benchmarks
MMLU	83	—
	View Sonar Reasoning Pro	View Kimi K2.5

Cost Calculator

Enter your expected monthly token usage to compare costs.

Input tokens / month

Output tokens / month

Model	Input	Output	Total / mo	vs Best
Kimi K2.5Cheapest	$0.38	$0.86	$1.24	—
Sonar Reasoning Pro	$2.00	$4.00	$6.00	+383%

Perplexity AI

Sonar Reasoning Pro

Sonar Reasoning Pro is a multimodal llm from Perplexity AI. Supports up to 128,000 token context window. Achieves 83.0% on MMLU. Available from $2.00/M input tokens.

Moonshot AI

Kimi K2.5

Kimi K2.5 is a multimodal llm from Moonshot AI. Supports up to 262,144 token context window. Available from $0.38/M input tokens.