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Comparison · 2 models · Updated Oct 4, 2026

Grok 4.3 vs GPT-4.1 mini

Grok 4.3 comes out ahead, 67 to 60 on our weighted score, though GPT-4.1 mini is 2.2× cheaper per token.

  1. Our pick

    xAI

    Grok 4.3

    Released Apr 17, 2026

    67/100
    • ECI149.2
    • Price$1.25 / $2.50
    • Context1M
    Full specs Remove Grok 4.3

  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

Grok 4.3 is our pick

Grok 4.3 is the better all-round choice, scoring 67/100 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%.

  • CapabilityGrok 4.3Capabilities Index (ECI): Grok 4.3 149.2 · GPT-4.1 mini 135.0
  • Lowest priceGPT-4.1 miniGPT-4.1 mini $0.70 · Grok 4.3 $1.56 per 1M tokens (3:1 blend)
  • Longest contextGPT-4.1 miniGPT-4.1 mini 1,047,576 · Grok 4.3 1,000,000 tokens
  • Widest inputsSame inputsGrok 4.3: Text, Images, PDFs · GPT-4.1 mini: Text, Images, PDFs
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGrok 4.3GPT-4.1 mini
CapabilityCapabilities Index (ECI)50%7759
Price25%4157
Inputs & features15%8070
Context window10%6061
Overall100%67/10060/100
02 — Side by side

Every spec in one table

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

Grok 4.3 vs GPT-4.1 mini specifications side by side
SpecificationGrok 4.3xAIGPT-4.1 miniOpenAI
Capability
Capabilities Index (ECI)149.2 (best)135.0
ECI rank#55 of 148 (best)#115 of 148
GPQA DiamondGraduate-level science questions88.8% (best)65.9%
FrontierMath Tiers 1–3Research-level mathematics42.8% (best)6.7%
OTIS Mock AIME 2024–2025Competition mathematics93.3% (best)44.7%
SimpleQA VerifiedShort factual questions33.2% (best)12.7%
Price per million tokens
Input$1.25$0.40 (best)
Output$2.50$1.60 (best)
Cached input$0.20$0.10 (best)
Blended (3:1)$1.56$0.70 (best)
Long-context rateOver 200K: $2.50 / $5.00Same rate
Price sourceOfficial xAI APIOfficial OpenAI API
Limits
Context window1,000,000 tokens1,047,576 tokens (best)
Max output30,000 tokens32,768 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesYes
AudioNoNo
VideoNoNo
ReasoningYeslow · medium · highNo
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model IDgrok-4.3gpt-4.1-mini
API providers27 (best)24
ReleasedApr 17, 2026Apr 14, 2025
Knowledge cutoff—Apr 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.

  • Grok 4.3$17.50
  • GPT-4.1 mini$7.20
04 — Questions

Which should you choose?

Which is better: Grok 4.3 or GPT-4.1 mini?

Grok 4.3 is the better all-round choice, scoring 67/100 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, Grok 4.3 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). Grok 4.3 costs $1.25 input / $2.50 output per million tokens (official xAI 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 $1.56 for Grok 4.3 (2.2× as much).

Which scores higher on benchmarks?

Grok 4.3 scores higher on the Capabilities Index (ECI): Grok 4.3 149.2 (#55 of 148) and GPT-4.1 mini 135.0 (#115 of 148). Their confidence ranges do not overlap (147.6–150.8 vs 131.2–136.6), so the gap is a real one. On individual benchmarks: GPQA Diamond — Grok 4.3 88.8%, GPT-4.1 mini 65.9%; FrontierMath Tiers 1–3 — Grok 4.3 42.8%, GPT-4.1 mini 6.7%; OTIS Mock AIME 2024–2025 — Grok 4.3 93.3%, GPT-4.1 mini 44.7%; SimpleQA Verified — Grok 4.3 33.2%, GPT-4.1 mini 12.7%.

Which is better for coding?

There are no published SWE-bench Verified results for Grok 4.3 and GPT-4.1 mini yet, so there is no like-for-like coding score. On overall capability, Grok 4.3 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?

GPT-4.1 mini has the largest context window at 1,047,576 tokens, against 1,000,000 for Grok 4.3. Maximum output per response: Grok 4.3 up to 30,000, GPT-4.1 mini up to 32,768 tokens.

Which can read images, PDFs, audio or video?

Grok 4.3 accepts text, images and PDFs; GPT-4.1 mini accepts text, images and PDFs. They handle the same number of input types.

Are any of these open source?

No. Grok 4.3 and GPT-4.1 mini are proprietary and only available through APIs and apps.

Which is newer?

Grok 4.3 is the newest, released Apr 17, 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.

05 — Keep comparing

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