Claude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/MClaude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/M
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Sonar Reasoning Pro

Reasoning

Reasoning Sonar Pro — chain-of-thought built on top of the web-grounded retrieval layer. Cites its sources while thinking.

Sonar Reasoning Pro is a reasoning AI model from Perplexity. It costs $2.000 per million input tokens and $8.000 per million output tokens (blended $3.800/M), with a 127K-token context window.

Modalities textOfficial model page ↗Provider pricing ↗API docs ↗Compare with another model →Estimate monthly cost →
INPUT
$2.000/M
per million input tokens
OUTPUT
$8.000/M
per million output tokens
BLENDED 70/30
$3.800/M
default reference rate · how it's calculated →
CONTEXT
127K
127,000 tokens
What it's good at
  • Web-grounded reasoning
  • Visible thinking
  • Citations included
Typical use cases
  • Multi-step research
  • Fact-grounded analysis
  • Citation-heavy reports
Benchmarks
vs. best public score
MMLU88%
Multitask academic knowledge across 57 subjects.
GPQA Diamond70%
Graduate-level science questions, "Google-proof".
MATH92%
High-school competition math problems.
HumanEval88%
Python function synthesis from docstrings.
Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources — treat as directional rather than authoritative.
More from Perplexity
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in $3.000/Mout $15.000/M
Sonar Huge
Large · 127K ctx
in $5.000/Mout $5.000/M
Sonar
Efficient · 127K ctx
in $1.000/Mout $1.000/M
Sonar Reasoning
Reasoning · 127K ctx
in $1.000/Mout $5.000/M
Sonar Deep Research
Research · 127K ctx
in $2.000/Mout $8.000/M
Frequently asked questions

How much does Sonar Reasoning Pro cost?

Sonar Reasoning Pro costs $2.000 per million input tokens and $8.000 per million output tokens, for a blended reference rate of $3.800 per million tokens.

What is Sonar Reasoning Pro's context window?

Sonar Reasoning Pro supports up to 127K tokens of context (127,000 tokens).

What is Sonar Reasoning Pro best for?

Sonar Reasoning Pro is well suited to Web-grounded reasoning, Visible thinking and Citations included.

Who makes Sonar Reasoning Pro?

Sonar Reasoning Pro is developed and served by Perplexity.