API cost decision in 10 seconds

Cogito v2.1 671B vs Sonar Pro Search

Pick Cogito v2.1 671B for lower cost; pick Sonar Pro Search only if the larger context window matters more.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Cogito v2.1 671B for lower cost; pick Sonar Pro Search only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Cogito v2.1 671B is estimated at $1.88 vs $10.5 for Sonar Pro Search, saving $8.62 (82.1% lower).

Cost-first pickCogito v2.1 671B
Context-first pickSonar Pro Search
Sample savings$8.6282.1%
10x traffic gap$86.25

Sonar Pro Search has more context, but Cogito v2.1 671B saves $8.62 on the standard workload. At 10x that traffic, the same price gap is about $86.25. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Cogito v2.1 671B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickCogito v2.1 671BSonar Pro Search
Input-heavy / RAG5M input + 500K outputCogito v2.1 671B$6.88$22.5
Balanced workload1M input + 1M outputCogito v2.1 671B$2.5$18
Output-heavy chatbot1M input + 5M outputCogito v2.1 671B$7.5$78
Cheaper input Cogito v2.1 671B $1.25 vs $3 / 1M

Cogito v2.1 671B is $1.75 cheaper per 1M input tokens (58.3% lower; 2.4x difference).

Cheaper output Cogito v2.1 671B $1.25 vs $15 / 1M

Cogito v2.1 671B is $13.75 cheaper per 1M output tokens (91.7% lower; 12x difference).

Larger context Sonar Pro Search 128K vs 200K

Sonar Pro Search has 72K more context (1.56x larger).

Sample workload Cogito v2.1 671B $1.88 vs $10.5

Cogito v2.1 671B is $8.62 cheaper on the standard workload (82.1% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Cogito v2.1 671B Calculating… Estimated API cost
Sonar Pro Search Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Cogito v2.1 671B has the lower input price; Cogito v2.1 671B has the lower output price; Sonar Pro Search offers the larger context window. For the 1M input plus 500K output sample, Cogito v2.1 671B is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.88 for Cogito v2.1 671B and $10.5 for Sonar Pro Search.

Best Fit

Choose Cogito v2.1 671B when you care most about lower input-token price, and lower output-token price.

Choose Sonar Pro Search when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Cogito v2.1 671B is estimated at $1.88 vs $10.5 for Sonar Pro Search, saving $8.62 (82.1% lower).
  • Cogito v2.1 671B is $8.62 cheaper on the standard workload (82.1% lower).
  • Cogito v2.1 671B is $1.75 cheaper per 1M input tokens (58.3% lower; 2.4x difference).
  • Cogito v2.1 671B is $13.75 cheaper per 1M output tokens (91.7% lower; 12x difference).
  • Sonar Pro Search has 72K more context (1.56x larger).
Head-to-Head Specs
FeatureCogito v2.1 671B
(Deep Cogito)		Sonar Pro Search
(Perplexity)
Input Price
prompt tokens per 1M		$1.25$3
Completion Price
per 1M tokens		$1.25$15
Sample Workload Cost
1M input + 500K output		$1.88$10.5
Context Window128K200K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionCogito v2.1 671BOn the standard 1M input plus 500K output workload, Cogito v2.1 671B is estimated at $1.88 vs $10.5 for Sonar Pro Search, saving $8.62 (82.1% lower).
High-volume input processingCogito v2.1 671BLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsCogito v2.1 671BLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workSonar Pro SearchA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Sonar can replace Sonar Pro Search when lower sample workload cost matters most: $1.5.
  • Sonar Reasoning Pro can replace Sonar Pro Search when lower sample workload cost matters most: $6.
  • Sonar Deep Research can replace Sonar Pro Search when lower sample workload cost matters most: $6.
Larger context near this budget
  • Llama 4 Scout offers 10M context with $0.23 sample workload cost.
  • Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
  • Grok 4.20 offers 2M context with $2.5 sample workload cost.
  • GPT-5.4 offers 1.05M context with $10 sample workload cost.
Popular competitors
  • No popular competitor is currently available.

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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Deep Cogito catalog

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Perplexity catalog

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