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
BETA
Subscribe
← Back to Index·All Perplexity models
Perplexity
PerplexityReasoning

Sonar Reasoning

Reasoning

Cheaper reasoning Sonar. Web-grounded chain-of-thought at lower latency than Sonar Reasoning Pro.

Sonar Reasoning is a reasoning AI model from Perplexity. It costs $1.000 per million input tokens and $5.000 per million output tokens (blended $2.200/M), with a 127K-token context window.

Modalities textOfficial model page ↗Provider pricing ↗API docs ↗Compare with another model →Estimate monthly cost →
INPUT
$1.000/M
per million input tokens
OUTPUT
$5.000/M
per million output tokens
BLENDED 70/30
$2.200/M
default reference rate · how it's calculated →
CONTEXT
127K
127,000 tokens
What it's good at
  • Web-grounded reasoning
  • Cheaper than Pro
  • Visible thinking
Typical use cases
  • Cost-sensitive research
  • Fact-grounded reasoning at scale
Benchmarks
vs. best public score
MMLU84%
Multitask academic knowledge across 57 subjects.
GPQA Diamond60%
Graduate-level science questions, "Google-proof".
MATH84%
High-school competition math problems.
HumanEval80%
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
See all 6 →
Sonar Pro
Frontier · 200K ctx
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 Pro
Reasoning · 127K ctx
in $2.000/Mout $8.000/M
Sonar Deep Research
Research · 127K ctx
in $2.000/Mout $8.000/M
Frequently asked questions

How much does Sonar Reasoning cost?

Sonar Reasoning costs $1.000 per million input tokens and $5.000 per million output tokens, for a blended reference rate of $2.200 per million tokens.

What is Sonar Reasoning's context window?

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

What is Sonar Reasoning best for?

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

Who makes Sonar Reasoning?

Sonar Reasoning is developed and served by Perplexity.