API cost decision in 10 seconds

Seed 1.6 Flash vs Sonar Pro Search

Pick Seed 1.6 Flash when budget and context both matter.

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

Budget verdict

Pick Seed 1.6 Flash when budget and context both matter.

On the standard 1M input plus 500K output workload, Seed 1.6 Flash is estimated at $0.22 vs $10.5 for Sonar Pro Search, saving $10.28 (97.9% lower).

Cost-first pickSeed 1.6 Flash
Context-first pickSeed 1.6 Flash
Sample savings$10.2897.9%
10x traffic gap$102.75

Seed 1.6 Flash is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $102.75. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Seed 1.6 Flash stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickSeed 1.6 FlashSonar Pro Search
Input-heavy / RAG5M input + 500K outputSeed 1.6 Flash$0.53$22.5
Balanced workload1M input + 1M outputSeed 1.6 Flash$0.38$18
Output-heavy chatbot1M input + 5M outputSeed 1.6 Flash$1.57$78
Cheaper input Seed 1.6 Flash $0.075 vs $3 / 1M

Seed 1.6 Flash is $2.92 cheaper per 1M input tokens (97.5% lower; 40x difference).

Cheaper output Seed 1.6 Flash $0.3 vs $15 / 1M

Seed 1.6 Flash is $14.7 cheaper per 1M output tokens (98% lower; 50x difference).

Larger context Seed 1.6 Flash 262.14K vs 200K

Seed 1.6 Flash has 62.14K more context (1.31x larger).

Sample workload Seed 1.6 Flash $0.22 vs $10.5

Seed 1.6 Flash is $10.28 cheaper on the standard workload (97.9% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Seed 1.6 Flash 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

Seed 1.6 Flash has the lower input price; Seed 1.6 Flash has the lower output price; Seed 1.6 Flash offers the larger context window. For the 1M input plus 500K output sample, Seed 1.6 Flash is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.22 for Seed 1.6 Flash and $10.5 for Sonar Pro Search.

Best Fit

Choose Seed 1.6 Flash when you care most about lower input-token price, lower output-token price, and larger context window.

Choose Sonar Pro Search when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes
  • On the standard 1M input plus 500K output workload, Seed 1.6 Flash is estimated at $0.22 vs $10.5 for Sonar Pro Search, saving $10.28 (97.9% lower).
  • Seed 1.6 Flash is $10.28 cheaper on the standard workload (97.9% lower).
  • Seed 1.6 Flash is $2.92 cheaper per 1M input tokens (97.5% lower; 40x difference).
  • Seed 1.6 Flash is $14.7 cheaper per 1M output tokens (98% lower; 50x difference).
  • Seed 1.6 Flash has 62.14K more context (1.31x larger).
Head-to-Head Specs
FeatureSeed 1.6 Flash
(ByteDance Seed)		Sonar Pro Search
(Perplexity)
Input Price
prompt tokens per 1M		$0.075$3
Completion Price
per 1M tokens		$0.3$15
Sample Workload Cost
1M input + 500K output		$0.22$10.5
Context Window262.14K200K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionSeed 1.6 FlashOn the standard 1M input plus 500K output workload, Seed 1.6 Flash is estimated at $0.22 vs $10.5 for Sonar Pro Search, saving $10.28 (97.9% lower).
High-volume input processingSeed 1.6 FlashLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsSeed 1.6 FlashLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workSeed 1.6 FlashA 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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ByteDance Seed catalog

Review all tracked ByteDance Seed models before deciding whether this matchup is the right shortlist.

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Perplexity catalog

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