Gemini 3.1 Flash-Lite vs GPT-4o

Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.

Gemini 3.1 Flash-Lite

Google · Mar 2026

The cheapest Gemini 3 model: multimodal input and a 1M context for $0.25/$1.50 — built for massive-scale pipelines.

GPT-4o

OpenAI · May 2024

The 2024 omni-modal classic with native audio in and out; superseded at the frontier but still everywhere in production.

The verdict

These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Gemini 3.1 Flash-Lite works out roughly 7.8x cheaper per blended million tokens. Gemini 3.1 Flash-Lite also takes 1M of context versus 128K for GPT-4o.

Specs & pricing

Gemini 3.1 Flash-LiteGPT-4o
modhub Index
Input price / 1M$0.25$2.5
Output price / 1M$1.5$10
Context window1M128K
Max output66K16K
Open weightsnono
Reasoning modelnono
Multimodal inputtext, image, audio, videotext, image, audio
Knowledge cutoffNov 2025Oct 2023
ReleasedMar 2026May 2024
Example monthly cost*$4.75$40.00

* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.

Frequently asked questions

Which is better, Gemini 3.1 Flash-Lite or GPT-4o?
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Gemini 3.1 Flash-Lite works out roughly 7.8x cheaper per blended million tokens. Gemini 3.1 Flash-Lite also takes 1M of context versus 128K for GPT-4o.
Which is cheaper, Gemini 3.1 Flash-Lite or GPT-4o?
Gemini 3.1 Flash-Lite costs $0.25/$1.5 per million input/output tokens, while GPT-4o costs $2.5/$10. For a typical workload of 10M input and 1.5M output tokens per month, that's $4.75 versus $40.00.
Which model is better for coding, Gemini 3.1 Flash-Lite or GPT-4o?
We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.

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