ZMIME
Comparison · 2 models · Updated Oct 4, 2026

GPT-4.1 mini vs GLM-5V-Turbo

GPT-4.1 mini comes out ahead, 62 to 49 on our weighted score, and it is the cheaper option too.

  1. Our pick

    OpenAI

    GPT-4.1 mini

    Released Apr 14, 2025

    62/100
    • ECI135.0
    • Price$0.40 / $1.60
    • Context1.05M
  2. Z.ai (Zhipu)

    GLM-5V-Turbo

    Released Apr 1, 2026

    49/100
    • ECI—
    • Price$1.20 / $4.00
    • Context200K
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01 — Verdict

GPT-4.1 mini is our pick

GPT-4.1 mini is the better all-round choice, scoring 62/100 against GLM-5V-Turbo (49). It leads on price and context window. GLM-5V-Turbo wins on inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceGPT-4.1 miniGPT-4.1 mini $0.70 · GLM-5V-Turbo $1.90 per 1M tokens (3:1 blend)
  • Longest contextGPT-4.1 miniGPT-4.1 mini 1,047,576 · GLM-5V-Turbo 200,000 tokens
  • Widest inputsGLM-5V-TurboGPT-4.1 mini: Text, Images, PDFs · GLM-5V-Turbo: Text, Images, PDFs, Video
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGPT-4.1 miniGLM-5V-Turbo
Price50%5737
Inputs & features30%7080
Context window20%6132
Overall100%62/10049/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

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

GPT-4.1 mini vs GLM-5V-Turbo specifications side by side
SpecificationGPT-4.1 miniOpenAIGLM-5V-TurboZ.ai (Zhipu)
Capability
Capabilities Index (ECI)135.0—
ECI rank#115 of 148—
GPQA DiamondGraduate-level science questions65.9%—
FrontierMath Tiers 1–3Research-level mathematics6.7%—
OTIS Mock AIME 2024–2025Competition mathematics44.7%—
SimpleQA VerifiedShort factual questions12.7%—
Price per million tokens
Input$0.40 (best)$1.20
Output$1.60 (best)$4.00
Cached input$0.10 (best)$0.24
Blended (3:1)$0.70 (best)$1.90
Long-context rateSame rateSame rate
Price sourceOfficial OpenAI APIOfficial Z.AI API
Limits
Context window1,047,576 tokens (best)200,000 tokens
Max output32,768 tokens131,072 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesYes
AudioNoNo
VideoNoYes
ReasoningNoYes
Tool callingYesYes
Structured outputYesNo
Availability
WeightsProprietaryProprietary
API model IDgpt-4.1-miniglm-5v-turbo
API providers24 (best)14
ReleasedApr 14, 2025Apr 1, 2026
Knowledge cutoffApr 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.

  • GPT-4.1 mini$7.20
  • GLM-5V-Turbo$20.00
04 — Questions

Which should you choose?

Which is better: GPT-4.1 mini or GLM-5V-Turbo?

GPT-4.1 mini is the better all-round choice, scoring 62/100 against GLM-5V-Turbo (49). It leads on price and context window. GLM-5V-Turbo wins on inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, GPT-4.1 mini or GLM-5V-Turbo?

GPT-4.1 mini is cheaper at $0.40 input / $1.60 output per million tokens (official OpenAI API price). GLM-5V-Turbo costs $1.20 input / $4.00 output per million tokens (official Z.AI 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 $1.90 for GLM-5V-Turbo (2.7× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. GPT-4.1 mini has an ECI of 135.0 and GLM-5V-Turbo has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for GPT-4.1 mini and GLM-5V-Turbo yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

GPT-4.1 mini has the largest context window at 1,047,576 tokens, against 200,000 for GLM-5V-Turbo. Maximum output per response: GPT-4.1 mini up to 32,768, GLM-5V-Turbo up to 131,072 tokens.

Which can read images, PDFs, audio or video?

GPT-4.1 mini accepts text, images and PDFs; GLM-5V-Turbo accepts text, images, PDFs and video. GLM-5V-Turbo handles the widest range of inputs.

Are any of these open source?

No. GPT-4.1 mini and GLM-5V-Turbo are proprietary and only available through APIs and apps.

Which is newer?

GLM-5V-Turbo is the newest, released Apr 1, 2026. GPT-4.1 mini came out Apr 14, 2025. Knowledge cutoff: 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.