API cost decision in 10 seconds

New🔥Gemini 3.5 Flash vs NewOpenAI GPT Mini Latest

Pick OpenAI GPT Mini Latest for lower cost; pick Gemini 3.5 Flash 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 OpenAI GPT Mini Latest for lower cost; pick Gemini 3.5 Flash only if the larger context window matters more.

On the standard 1M input plus 500K output workload, OpenAI GPT Mini Latest is estimated at $3 vs $6 for Gemini 3.5 Flash, saving $3 (50% lower).

Cost-first pickOpenAI GPT Mini Latest
Context-first pickGemini 3.5 Flash
Sample savings$350%
10x traffic gap$30

Gemini 3.5 Flash has more context, but OpenAI GPT Mini Latest saves $3 on the standard workload. At 10x that traffic, the same price gap is about $30. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

OpenAI GPT Mini Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGemini 3.5 FlashOpenAI GPT Mini Latest
Input-heavy / RAG5M input + 500K outputOpenAI GPT Mini Latest$12$6
Balanced workload1M input + 1M outputOpenAI GPT Mini Latest$10.5$5.25
Output-heavy chatbot1M input + 5M outputOpenAI GPT Mini Latest$46.5$23.25
Cheaper input OpenAI GPT Mini Latest $1.5 vs $0.75 / 1M

OpenAI GPT Mini Latest is $0.75 cheaper per 1M input tokens (50% lower; 2x difference).

Cheaper output OpenAI GPT Mini Latest $9 vs $4.5 / 1M

OpenAI GPT Mini Latest is $4.5 cheaper per 1M output tokens (50% lower; 2x difference).

Larger context Gemini 3.5 Flash 1.05M vs 400K

Gemini 3.5 Flash has 648.58K more context (2.62x larger).

Sample workload OpenAI GPT Mini Latest $6 vs $3

OpenAI GPT Mini Latest is $3 cheaper on the standard workload (50% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Gemini 3.5 Flash Calculating… Estimated API cost
OpenAI GPT Mini 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

OpenAI GPT Mini Latest has the lower input price; OpenAI GPT Mini Latest has the lower output price; Gemini 3.5 Flash offers the larger context window. For the 1M input plus 500K output sample, OpenAI GPT Mini Latest is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $6 for Gemini 3.5 Flash and $3 for OpenAI GPT Mini Latest.

Best Fit

Choose Gemini 3.5 Flash when you care most about larger context window.

Choose OpenAI GPT Mini Latest when you care most about lower input-token price, and lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, OpenAI GPT Mini Latest is estimated at $3 vs $6 for Gemini 3.5 Flash, saving $3 (50% lower).
  • OpenAI GPT Mini Latest is $3 cheaper on the standard workload (50% lower).
  • OpenAI GPT Mini Latest is $0.75 cheaper per 1M input tokens (50% lower; 2x difference).
  • OpenAI GPT Mini Latest is $4.5 cheaper per 1M output tokens (50% lower; 2x difference).
  • Gemini 3.5 Flash has 648.58K more context (2.62x larger).
Head-to-Head Specs
FeatureNew🔥Gemini 3.5 Flash
(Google)
NewOpenAI GPT Mini Latest
(OpenAI)
Input Price
prompt tokens per 1M
$1.5$0.75
Completion Price
per 1M tokens
$9$4.5
Sample Workload Cost
1M input + 500K output
$6$3
Context Window1.05M400K
Release Date
Popularity#11

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionOpenAI GPT Mini LatestOn the standard 1M input plus 500K output workload, OpenAI GPT Mini Latest is estimated at $3 vs $6 for Gemini 3.5 Flash, saving $3 (50% lower).
High-volume input processingOpenAI GPT Mini LatestLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsOpenAI GPT Mini LatestLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGemini 3.5 FlashA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Gemma 4 26B A4B (free) can replace Gemini 3.5 Flash when lower sample workload cost matters most: $0.
  • Gemma 4 31B (free) can replace Gemini 3.5 Flash when lower sample workload cost matters most: $0.
  • Lyria 3 Pro Preview can replace Gemini 3.5 Flash when lower sample workload cost matters most: $0.
  • Lyria 3 Clip Preview can replace Gemini 3.5 Flash when lower sample workload cost matters most: $0.
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Gemini 3.5 Flash

Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...

OpenAI GPT Mini Latest

This model always redirects to the latest model in the OpenAI GPT Mini family.