LLM Comparison

Kimi K2.5 vs Sonar Reasoning Pro

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

Price vs Intelligence

7262534434$0.74$2.18$3.62$5.06$6.50Avg Price per M tokensIntelligenceKimi K2.561.8 / $1.05Sonar Reasoning Pro44.2 / $5.00

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2/6 models
Same tier:
 Moonshot AIKimi K2.5Perplexity AISonar Reasoning Pro
OrganizationMoonshot AIMoonshot AIPerplexity AIPerplexity AI
OpenTools Score
62
58.8
44
8.8
FamilyKimiSonar
StatusCurrentCurrent
Release DateJan 2026Mar 2025
Context Window262K tokens128K tokens
Input Price$0.38/M tokens$2.00/M tokens
Output Price$1.72/M tokens$8.00/M tokens
Pricing NotesCache read: $0.1913/M tokens—
Capabilities
textvisioncode
textvisioncodeextended-thinking
Max Output66K tokens—
API Identifiermoonshotai/kimi-k2.5perplexity/sonar-reasoning-pro
Benchmarks
GPQA Diamond—
62.3perplexity
MATH-500—
92.1perplexity
AIME—
77perplexity
MMLU Pro—
79perplexity
 View Kimi K2.5View Sonar Reasoning Pro

Cost Calculator

Enter your expected monthly token usage to compare costs.

ModelInputOutputTotal / movs Best
Kimi K2.5Cheapest$0.38$0.86$1.24—
Sonar Reasoning Pro$2.00$4.00$6.00+383%

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.

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.

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