Sonar Reasoning Pro
Jan 2024
Sonar Reasoning ProCompare inonAA Intelligence Index 4.3.2
Alternatives?
ModelScoreCostPer taskWhat changes
CheaperMuse Spark 1.3max×4.1-43%$1.60Only auto tool_choice is supported+5
BetterGPT-6 Lunalow+82%-94%$0.005Function calling only with none · Chat Completions+3
OpenMiMo v2.6 Prothinking×3.9-84%$0.13Pass back reasoning_content+3
CheaperGrok 4.7xhigh×3.9-14%$3.74Reasoning cannot be disabled+4
CheaperQwen3.8 Max (0902)thinking×3.8-14%$5.41ModelScoreCostPer taskWhat changes
Muse Spark 1.3max×4.1-43%$1.60Only auto tool_choice is supported+5Grok 4.7xhigh×3.9-14%$3.74Reasoning cannot be disabled+4MiMo v2.6 ProthinkingOpen×3.9-84%$0.13Pass back reasoning_content+3Qwen3.8 Max (0902)thinking×3.8-14%$5.41
DeepSeek V4.1 Flash 1017maxOpen×3.8-85%$0.26Pass back reasoning_content · Chat Completions+4ModelScoreCostPer taskWhat changes
GPT-6 Lunalow+82%-94%$0.005Function calling only with none · Chat Completions+3GPT-5.6 Lunalow+78%-87%$0.01MiMo v2.5thinkingOpen+85%-95%$0.019
Claude Haiku 5.5low×2.5-94%$0.024Remove sampling parameters+5GPT-5 Minihigh+42%-80%$0.053ModelScoreCostPer taskWhat changes
MiMo v2.6 ProthinkingOpen×3.9-84%$0.13Pass back reasoning_content+3DeepSeek V4.1 Flash 1017maxOpen×3.8-85%$0.26Pass back reasoning_content · Chat Completions+4
GLM 5.3maxOpen×3.8-39%$2.01No image input+4
Step 5 PreviewthinkingOpen×3.7-59%$1.03No web search+3
Kimi K3maxOpen×3.7+71%$2.00Sampling parameters are fixed+3Benchmarks
in Chat & KnowledgeAA Intelligence Index 4.3.2≈11.8#184
FAQ
How much does Sonar Reasoning Pro cost?›
$2 per 1M input tokens and $8 per 1M output tokens.
Is Sonar Reasoning Pro free to use?›
There is no free API; the cheapest paid price is $2 per 1M input tokens.
How good is Sonar Reasoning Pro, and what is it best at?›
#182 of 334 in Chat & Knowledge.
Is Sonar Reasoning Pro better than Sonar?›
On AA Intelligence Index 4.3.2, Sonar Reasoning Pro scores 11.8 vs 7.7 — higher.
How can I use Sonar Reasoning Pro?›
Through the API of Perplexity.
What is the context window of Sonar Reasoning Pro?›
128K tokens, with up to 115K output tokens.
When was Sonar Reasoning Pro released? Is there a newer version?›
Released 2024-01-01. It is the current version in its line.
Is Sonar Reasoning Pro open source?›
No, Sonar Reasoning Pro is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.
Can Sonar Reasoning Pro read images?›
It accepts text and images as input.
What is Sonar Reasoning Pro?›
Sonar Reasoning Pro is a closed language model from Perplexity, released Jan 2024, the successor to Sonar.
What are the best alternatives to Sonar Reasoning Pro?›
Muse Spark 1.3 (cheaper), GPT-6 Luna (better), MiMo v2.6 Pro (open weights).