API cost decision in 10 seconds

🔥GPT-5.4 vs Gemini 2.0 Flash Lite

Pick Gemini 2.0 Flash Lite for lower cost; pick GPT-5.4 only if the larger context window matters more.

Page updated: 2026-05-26T15:08:08Z Data confirmed: 2026-05-26T19:08:13Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Gemini 2.0 Flash Lite for lower cost; pick GPT-5.4 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Gemini 2.0 Flash Lite is estimated at $0.22 vs $10 for GPT-5.4, saving $9.78 (97.8% lower).

Cost-first pickGemini 2.0 Flash Lite

Context-first pickGPT-5.4

Sample savings$9.7897.8%

10x traffic gap$97.75

GPT-5.4 has more context, but Gemini 2.0 Flash Lite saves $9.78 on the standard workload. At 10x that traffic, the same price gap is about $97.75. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Gemini 2.0 Flash Lite stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	GPT-5.4	Gemini 2.0 Flash Lite
Input-heavy / RAG	5M input + 500K output	Gemini 2.0 Flash Lite	$20	$0.53
Balanced workload	1M input + 1M output	Gemini 2.0 Flash Lite	$17.5	$0.38
Output-heavy chatbot	1M input + 5M output	Gemini 2.0 Flash Lite	$77.5	$1.57

Cheaper input Gemini 2.0 Flash Lite $2.5 vs $0.075 / 1M

Gemini 2.0 Flash Lite is $2.42 cheaper per 1M input tokens (97% lower; 33.3x difference).

Cheaper output Gemini 2.0 Flash Lite $15 vs $0.3 / 1M

Gemini 2.0 Flash Lite is $14.7 cheaper per 1M output tokens (98% lower; 50x difference).

Larger context GPT-5.4 1.05M vs 1.05M

GPT-5.4 has 1.42K more context (1x larger).

Sample workload Gemini 2.0 Flash Lite $10 vs $0.22

Gemini 2.0 Flash Lite is $9.78 cheaper on the standard workload (97.8% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

GPT-5.4 Calculating… Estimated API cost

Gemini 2.0 Flash Lite 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 2.0 Flash Lite has the lower input price; Gemini 2.0 Flash Lite has the lower output price; GPT-5.4 offers the larger context window. For the 1M input plus 500K output sample, Gemini 2.0 Flash Lite is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $10 for GPT-5.4 and $0.22 for Gemini 2.0 Flash Lite.

Best Fit

Choose GPT-5.4 when you care most about larger context window.

Choose Gemini 2.0 Flash Lite 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, Gemini 2.0 Flash Lite is estimated at $0.22 vs $10 for GPT-5.4, saving $9.78 (97.8% lower).
Gemini 2.0 Flash Lite is $9.78 cheaper on the standard workload (97.8% lower).
Gemini 2.0 Flash Lite is $2.42 cheaper per 1M input tokens (97% lower; 33.3x difference).
Gemini 2.0 Flash Lite is $14.7 cheaper per 1M output tokens (98% lower; 50x difference).
GPT-5.4 has 1.42K more context (1x larger).

Head-to-Head Specs

Feature	🔥GPT-5.4 (OpenAI)	Gemini 2.0 Flash Lite (Google)
Input Price prompt tokens per 1M	$2.5	$0.075
Completion Price per 1M tokens	$15	$0.3
Sample Workload Cost 1M input + 500K output	$10	$0.22
Context Window	1.05M	1.05M
Release Date	2026-03-05	2025-02-25
Popularity	#19	#80

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Gemini 2.0 Flash Lite	On the standard 1M input plus 500K output workload, Gemini 2.0 Flash Lite is estimated at $0.22 vs $10 for GPT-5.4, saving $9.78 (97.8% lower).
High-volume input processing	Gemini 2.0 Flash Lite	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Gemini 2.0 Flash Lite	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	GPT-5.4	A 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-5.4 when lower sample workload cost matters most: $0.
gpt-oss-20b (free) can replace GPT-5.4 when lower sample workload cost matters most: $0.
gpt-oss-20b can replace GPT-5.4 when lower sample workload cost matters most: $0.1.
gpt-oss-120b can replace GPT-5.4 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 offers 2M context with $2.5 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.

Popular competitors

DeepSeek V4 Flash · DeepSeek · #1
Hy3 preview · Tencent · #2
Claude Opus 4.7 · Anthropic · #3
Claude Sonnet 4.6 · Anthropic · #4

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OpenAI catalog

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Google catalog

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