AI Models · Paid vs Paid

Gemini 3.5 Flash Paid vs GPT-4.1 Paid

Gemini 3.5 Flash vs GPT-4.1 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Gemini 3.5 Flash — full profile ›  ·  GPT-4.1 — full profile ›

Prices & specs refreshed from live data · OpenSourceAI.tech

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Choose GPT-4.1 for the lower output price ($8/M vs $9/M). Choose Gemini 3.5 Flash if you need the larger 1M context window.

Gemini 3.5 Flash vs GPT-4.1 specs

SpecGemini 3.5 FlashGPT-4.1
MakerGoogleOpenAI
TypeProprietaryProprietary
Context window1M tokens1M tokens
Input price$1.5/M$2/M
Output price$9/M$8/M
Vision / multimodalYesYes
Tool / function callingYesYes
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Feature comparison

CapabilityGemini 3.5 FlashGPT-4.1
Open weights (downloadable)✗✗
Self-hostable✗✗
Runs fully offline✗✗
Vision / multimodal✓✓
Tool / function calling✓✓
1M+ context window✓✓

Benchmarks: Gemini 3.5 Flash vs GPT-4.1

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Gemini 3.5 Flash delivers 2.7× more intelligence per dollar.
Gemini 3.5 Flash
GPT-4.1
Intelligence index
50.2
19.4
Coding index
70.1
–
GPQA
92.2%
66.6%
Humanity's Last Exam
41%
4.6%
Long Context Reasoning
69.3%
61%
SciCode
53.1%
38.1%
IFBench
76.3%
43%
τ²-Bench
95.3%
47.1%
τ-Bench Banking
25.4%
–
Terminal-Bench
78.7%
–
Terminal-Bench Hard
40.9%
13.6%
Math index
–
34.7
MMLU-Pro
–
80.6%
LiveCodeBench
–
45.7%
MATH-500
–
91.3%
AIME
–
43.7%
AIME 2025
–
34.7%
Speed
293.7 tok/s
150.8 tok/s
Latency
12.74s
0.56s
Intelligence per $
14.9
5.5

Benchmark data by Artificial Analysis.

How Gemini 3.5 Flash and GPT-4.1 score

🤝 Neck and neck on these criteria (3.2 vs 3.2 / 5).
CriterionGemini 3.5 FlashGPT-4.1
Cost-efficiency3.53.5
Context window5.05.0
Openness1.51.5
Self-hosting1.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Gemini 3.5 Flash Paid

Google · Proprietary

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...

GPT-4.1 Paid

OpenAI · Proprietary

GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Gemini 3 Flash PreviewGemini 2.5 Flash
Other variants tracked
GPT-4.1 Mini

Frequently asked questions

Gemini 3.5 Flash vs GPT-4.1 — which is cheaper?

GPT-4.1 is cheaper on output ($8/M vs $9/M).

Which has the larger context window?

Gemini 3.5 Flash offers the larger context window (1M tokens).

Gemini 3.5 Flash vs GPT-4.1 — which should I pick in 2026?

Choose GPT-4.1 for the lower output price ($8/M vs $9/M). Choose Gemini 3.5 Flash if you need the larger 1M context window.

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