API cost decision in 10 seconds

NewDots3-Note Preview (free) vs GPT-5.5 Pro

Pick Dots3-Note Preview (free) for lower cost; pick GPT-5.5 Pro only if the larger context window matters more.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Dots3-Note Preview (free) for lower cost; pick GPT-5.5 Pro only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Dots3-Note Preview (free) is estimated at $0 vs $120 for GPT-5.5 Pro, saving $120 (100% lower).

Cost-first pickDots3-Note Preview (free)
Context-first pickGPT-5.5 Pro
Sample savings$120100%
10x traffic gap$1200

GPT-5.5 Pro has more context, but Dots3-Note Preview (free) saves $120 on the standard workload. At 10x that traffic, the same price gap is about $1200. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Dots3-Note Preview (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickDots3-Note Preview (free)GPT-5.5 Pro
Input-heavy / RAG5M input + 500K outputDots3-Note Preview (free)$0$240
Balanced workload1M input + 1M outputDots3-Note Preview (free)$0$210
Output-heavy chatbot1M input + 5M outputDots3-Note Preview (free)$0$930
Cheaper input Dots3-Note Preview (free) $0 vs $30 / 1M

Dots3-Note Preview (free) is free for input tokens while GPT-5.5 Pro costs $30 per 1M tokens.

Cheaper output Dots3-Note Preview (free) $0 vs $180 / 1M

Dots3-Note Preview (free) is free for output tokens while GPT-5.5 Pro costs $180 per 1M tokens.

Larger context GPT-5.5 Pro 512K vs 1.05M

GPT-5.5 Pro has 538K more context (2.05x larger).

Sample workload Dots3-Note Preview (free) $0 vs $120

Dots3-Note Preview (free) is free for the standard workload while the other model is estimated at $120.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Dots3-Note Preview (free) Calculating… Estimated API cost
GPT-5.5 Pro 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

Dots3-Note Preview (free) has the lower input price; Dots3-Note Preview (free) has the lower output price; GPT-5.5 Pro offers the larger context window. For the 1M input plus 500K output sample, Dots3-Note Preview (free) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0 for Dots3-Note Preview (free) and $120 for GPT-5.5 Pro.

Best Fit

Choose Dots3-Note Preview (free) when you care most about lower input-token price, and lower output-token price.

Choose GPT-5.5 Pro when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Dots3-Note Preview (free) is estimated at $0 vs $120 for GPT-5.5 Pro, saving $120 (100% lower).
  • Dots3-Note Preview (free) is free for the standard workload while the other model is estimated at $120.
  • Dots3-Note Preview (free) is free for input tokens while GPT-5.5 Pro costs $30 per 1M tokens.
  • Dots3-Note Preview (free) is free for output tokens while GPT-5.5 Pro costs $180 per 1M tokens.
  • GPT-5.5 Pro has 538K more context (2.05x larger).
Head-to-Head Specs
FeatureNewDots3-Note Preview (free)
(Dots Studio)
GPT-5.5 Pro
(OpenAI)
Input Price
prompt tokens per 1M
$0$30
Completion Price
per 1M tokens
$0$180
Sample Workload Cost
1M input + 500K output
$0$120
Context Window512K1.05M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionDots3-Note Preview (free)On the standard 1M input plus 500K output workload, Dots3-Note Preview (free) is estimated at $0 vs $120 for GPT-5.5 Pro, saving $120 (100% lower).
High-volume input processingDots3-Note Preview (free)Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsDots3-Note Preview (free)Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-5.5 ProA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT-5.5 Pro when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT-5.5 Pro when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT-5.5 Pro when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT-5.5 Pro when lower sample workload cost matters most: $0.12.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

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Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

Dots Studio catalog

Review all tracked Dots Studio models before deciding whether this matchup is the right shortlist.

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OpenAI catalog

Check other OpenAI models with comparable pricing, context, or release timing.

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Dots3-Note Preview (free)

Dots3-Note Preview is an open-weight mixture-of-experts model from Dots Studio, with 16B active parameters out of 280B total. It is the lightest model in the Dots 3 family and is...

GPT-5.5 Pro

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...