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Gemini 2.0 Flash Thinking vs Sonar Reasoning: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Gemini 2.0 Flash Thinking and Sonar Reasoning across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGemini 2.0 Flash ThinkingSonar Reasoning
ProviderGooglePerplexity
Input Price / 1M tokens$0.00$1.00
Output Price / 1M tokens$0.00$5.00
Context Window
32K
127K
Max Output Tokens
16,384
8,192
Arena ELO
1,280
1,240
Coding ELO
1,270
1,235
TTFT (ms)
150
150
Tokens/sec
100
100
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Gemini 2.0 Flash Thinking

Gemini 2.0 Flash Thinking excels at reasoning, general-purpose tasks.

Strengths:

  • Free reasoning model
  • Strong math & logic
  • Extended thinking

Best for:

reasoninggeneral-purpose
When to Use Sonar Reasoning

Sonar Reasoning excels at reasoning, web-search tasks.

Strengths:

  • Reasoning + search
  • Fresh data
  • Good accuracy

Best for:

reasoningweb-search

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