API cost decision in 10 seconds

🔥Gemini 3 Flash Preview vs OpenAI GPT Latest

Pick Gemini 3 Flash Preview for lower cost; pick OpenAI GPT 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 Gemini 3 Flash Preview for lower cost; pick OpenAI GPT Latest only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Gemini 3 Flash Preview is estimated at $2 vs $20 for OpenAI GPT Latest, saving $18 (90% lower).

Cost-first pickGemini 3 Flash Preview
Context-first pickOpenAI GPT Latest
Sample savings$1890%
10x traffic gap$180

OpenAI GPT Latest has more context, but Gemini 3 Flash Preview saves $18 on the standard workload. At 10x that traffic, the same price gap is about $180. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Gemini 3 Flash Preview stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGemini 3 Flash PreviewOpenAI GPT Latest
Input-heavy / RAG5M input + 500K outputGemini 3 Flash Preview$4$40
Balanced workload1M input + 1M outputGemini 3 Flash Preview$3.5$35
Output-heavy chatbot1M input + 5M outputGemini 3 Flash Preview$15.5$155
Cheaper input Gemini 3 Flash Preview $0.5 vs $5 / 1M

Gemini 3 Flash Preview is $4.5 cheaper per 1M input tokens (90% lower; 10x difference).

Cheaper output Gemini 3 Flash Preview $3 vs $30 / 1M

Gemini 3 Flash Preview is $27 cheaper per 1M output tokens (90% lower; 10x difference).

Larger context OpenAI GPT Latest 1.05M vs 1.05M

OpenAI GPT Latest has 1.42K more context (1x larger).

Sample workload Gemini 3 Flash Preview $2 vs $20

Gemini 3 Flash Preview is $18 cheaper on the standard workload (90% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Gemini 3 Flash Preview Calculating… Estimated API cost
OpenAI GPT 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

Gemini 3 Flash Preview has the lower input price; Gemini 3 Flash Preview has the lower output price; OpenAI GPT Latest offers the larger context window. For the 1M input plus 500K output sample, Gemini 3 Flash Preview is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $2 for Gemini 3 Flash Preview and $20 for OpenAI GPT Latest.

Best Fit

Choose Gemini 3 Flash Preview when you care most about lower input-token price, and lower output-token price.

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

Decision Notes
  • On the standard 1M input plus 500K output workload, Gemini 3 Flash Preview is estimated at $2 vs $20 for OpenAI GPT Latest, saving $18 (90% lower).
  • Gemini 3 Flash Preview is $18 cheaper on the standard workload (90% lower).
  • Gemini 3 Flash Preview is $4.5 cheaper per 1M input tokens (90% lower; 10x difference).
  • Gemini 3 Flash Preview is $27 cheaper per 1M output tokens (90% lower; 10x difference).
  • OpenAI GPT Latest has 1.42K more context (1x larger).
Head-to-Head Specs
Feature🔥Gemini 3 Flash Preview
(Google)
OpenAI GPT Latest
(OpenAI)
Input Price
prompt tokens per 1M
$0.5$5
Completion Price
per 1M tokens
$3$30
Sample Workload Cost
1M input + 500K output
$2$20
Context Window1.05M1.05M
Release Date
Popularity#7

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionGemini 3 Flash PreviewOn the standard 1M input plus 500K output workload, Gemini 3 Flash Preview is estimated at $2 vs $20 for OpenAI GPT Latest, saving $18 (90% lower).
High-volume input processingGemini 3 Flash PreviewLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsGemini 3 Flash PreviewLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workOpenAI GPT LatestA 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 Flash Preview when lower sample workload cost matters most: $0.
  • Gemma 4 31B (free) can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.
  • Lyria 3 Pro Preview can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.
  • Lyria 3 Clip Preview can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.
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Gemini 3 Flash Preview

Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool...

OpenAI GPT Latest

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