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Comparison · 2 models · Updated Oct 4, 2026

Gemini 2.5 Flash vs GPT-4.1 mini

Gemini 2.5 Flash comes out ahead, 68 to 60 on our weighted score, though GPT-4.1 mini is 18% cheaper per token.

  1. Our pick

    Google

    Gemini 2.5 Flash

    Released Jun 17, 2025

    68/100
    • ECI140.8
    • Price$0.30 / $2.50
    • Context1.05M
    Full specs Remove Gemini 2.5 Flash

  2. OpenAI

    GPT-4.1 mini

    Released Apr 14, 2025

    60/100
    • ECI135.0
    • Price$0.40 / $1.60
    • Context1.05M
    Full specs Remove GPT-4.1 mini

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Gemini 2.5 Flash is our pick

Gemini 2.5 Flash is the better all-round choice, scoring 68/100 against GPT-4.1 mini (60). It leads on capability and inputs & features. GPT-4.1 mini wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGemini 2.5 FlashCapabilities Index (ECI): Gemini 2.5 Flash 140.8 · GPT-4.1 mini 135.0
  • Lowest priceGPT-4.1 miniGPT-4.1 mini $0.70 · Gemini 2.5 Flash $0.85 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameGemini 2.5 Flash 1,048,576 · GPT-4.1 mini 1,047,576 tokens
  • Widest inputsGemini 2.5 FlashGemini 2.5 Flash: Text, Images, PDFs, Audio, Video · GPT-4.1 mini: Text, Images, PDFs
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGemini 2.5 FlashGPT-4.1 mini
CapabilityCapabilities Index (ECI)50%6759
Price25%5357
Inputs & features15%10070
Context window10%6161
Overall100%68/10060/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Gemini 2.5 Flash vs GPT-4.1 mini specifications side by side
SpecificationGemini 2.5 FlashGoogleGPT-4.1 miniOpenAI
Capability
Capabilities Index (ECI)140.8 (best)135.0
ECI rank#97 of 148 (best)#115 of 148
GPQA DiamondGraduate-level science questions—65.9%
FrontierMath Tiers 1–3Research-level mathematics—6.7%
OTIS Mock AIME 2024–2025Competition mathematics—44.7%
SimpleQA VerifiedShort factual questions—12.7%
Price per million tokens
Input$0.30 (best)$0.40
Output$2.50$1.60 (best)
Cached input$0.03 (best)$0.10
Blended (3:1)$0.85$0.70 (best)
Long-context rateSame rateSame rate
Price sourceOfficial Google APIOfficial OpenAI API
Limits
Context window1,048,576 tokens (best)1,047,576 tokens
Max output65,536 tokens (best)32,768 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesYes
AudioYesNo
VideoYesNo
ReasoningYesNo
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model IDgemini-2.5-flashgpt-4.1-mini
API providers2224 (best)
ReleasedJun 17, 2025Apr 14, 2025
Knowledge cutoffJan 2025Apr 2024
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Gemini 2.5 Flash$8.00
  • GPT-4.1 mini$7.20
04 — Questions

Which should you choose?

Which is better: Gemini 2.5 Flash or GPT-4.1 mini?

Gemini 2.5 Flash is the better all-round choice, scoring 68/100 against GPT-4.1 mini (60). It leads on capability and inputs & features. GPT-4.1 mini wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Gemini 2.5 Flash or GPT-4.1 mini?

GPT-4.1 mini is cheaper at $0.40 input / $1.60 output per million tokens (official OpenAI API price). Gemini 2.5 Flash costs $0.30 input / $2.50 output per million tokens (official Google API price). At a typical mix of three input tokens to one output token, that is $0.70 per million tokens for GPT-4.1 mini versus $0.85 for Gemini 2.5 Flash (1.2× as much).

Which scores higher on benchmarks?

Gemini 2.5 Flash scores higher on the Capabilities Index (ECI): Gemini 2.5 Flash 140.8 (#97 of 148) and GPT-4.1 mini 135.0 (#115 of 148). Their confidence ranges do not overlap (138.5–142.3 vs 131.2–136.6), so the gap is a real one.

Which is better for coding?

There are no published SWE-bench Verified results for Gemini 2.5 Flash and GPT-4.1 mini yet, so there is no like-for-like coding score. On overall capability, Gemini 2.5 Flash leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

Their context windows are effectively the same size: Gemini 2.5 Flash 1,048,576 and GPT-4.1 mini 1,047,576 tokens. Maximum output per response: Gemini 2.5 Flash up to 65,536, GPT-4.1 mini up to 32,768 tokens.

Which can read images, PDFs, audio or video?

Gemini 2.5 Flash accepts text, images, PDFs, audio and video; GPT-4.1 mini accepts text, images and PDFs. Gemini 2.5 Flash handles the widest range of inputs.

Are any of these open source?

No. Gemini 2.5 Flash and GPT-4.1 mini are proprietary and only available through APIs and apps.

Which is newer?

Gemini 2.5 Flash is the newest, released Jun 17, 2025. GPT-4.1 mini came out Apr 14, 2025. Knowledge cutoff: Gemini 2.5 Flash Jan 2025, GPT-4.1 mini Apr 2024.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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