API cost decision in 10 seconds

NewPerceptron Mk1 vs NewGPT Chat Latest

Pick Perceptron Mk1 for lower cost; pick GPT Chat Latest 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 Perceptron Mk1 for lower cost; pick GPT Chat Latest only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Perceptron Mk1 is estimated at $0.9 vs $20 for GPT Chat Latest, saving $19.1 (95.5% lower).

Cost-first pickPerceptron Mk1
Context-first pickGPT Chat Latest
Sample savings$19.195.5%
10x traffic gap$191

GPT Chat Latest has more context, but Perceptron Mk1 saves $19.1 on the standard workload. At 10x that traffic, the same price gap is about $191. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Perceptron Mk1 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickPerceptron Mk1GPT Chat Latest
Input-heavy / RAG5M input + 500K outputPerceptron Mk1$1.5$40
Balanced workload1M input + 1M outputPerceptron Mk1$1.65$35
Output-heavy chatbot1M input + 5M outputPerceptron Mk1$7.65$155
Cheaper input Perceptron Mk1 $0.15 vs $5 / 1M

Perceptron Mk1 is $4.85 cheaper per 1M input tokens (97% lower; 33.3x difference).

Cheaper output Perceptron Mk1 $1.5 vs $30 / 1M

Perceptron Mk1 is $28.5 cheaper per 1M output tokens (95% lower; 20x difference).

Larger context GPT Chat Latest 32.77K vs 400K

GPT Chat Latest has 367.23K more context (12.2x larger).

Sample workload Perceptron Mk1 $0.9 vs $20

Perceptron Mk1 is $19.1 cheaper on the standard workload (95.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Perceptron Mk1 Calculating… Estimated API cost
GPT Chat Latest 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

Perceptron Mk1 has the lower input price; Perceptron Mk1 has the lower output price; GPT Chat Latest offers the larger context window. For the 1M input plus 500K output sample, Perceptron Mk1 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.9 for Perceptron Mk1 and $20 for GPT Chat Latest.

Best Fit

Choose Perceptron Mk1 when you care most about lower input-token price, and lower output-token price.

Choose GPT Chat Latest when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Perceptron Mk1 is estimated at $0.9 vs $20 for GPT Chat Latest, saving $19.1 (95.5% lower).
  • Perceptron Mk1 is $19.1 cheaper on the standard workload (95.5% lower).
  • Perceptron Mk1 is $4.85 cheaper per 1M input tokens (97% lower; 33.3x difference).
  • Perceptron Mk1 is $28.5 cheaper per 1M output tokens (95% lower; 20x difference).
  • GPT Chat Latest has 367.23K more context (12.2x larger).
Head-to-Head Specs
FeatureNewPerceptron Mk1
(Perceptron)		NewGPT Chat Latest
(OpenAI)
Input Price
prompt tokens per 1M		$0.15$5
Completion Price
per 1M tokens		$1.5$30
Sample Workload Cost
1M input + 500K output		$0.9$20
Context Window32.77K400K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionPerceptron Mk1On the standard 1M input plus 500K output workload, Perceptron Mk1 is estimated at $0.9 vs $20 for GPT Chat Latest, saving $19.1 (95.5% lower).
High-volume input processingPerceptron Mk1Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsPerceptron Mk1Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT Chat LatestA 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 Chat Latest when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT Chat Latest when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT Chat Latest when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT Chat Latest when lower sample workload cost matters most: $0.13.
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-5.5 offers 1.05M context with $20 sample workload cost.

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.

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Perceptron catalog

Review all tracked Perceptron 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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Perceptron Mk1

Perceptron Mk1 (Mark One) is Perceptron's highest-quality vision-language model for video and embodied reasoning.** It accepts image and video inputs paired with natural language queries, and produces detailed visual understanding...

GPT Chat Latest

GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...