ZMIME
Comparison · 2 models · Updated Oct 4, 2026

Claude Haiku 3 vs GPT-4o mini

GPT-4o mini comes out ahead, 56 to 47 on our weighted score, and it is the cheaper option too.

  1. Anthropic

    Claude Haiku 3

    Released Mar 13, 2024

    47/100
    • ECI118.4
    • Price$0.25 / $1.25
    • Context200K
    Full specs Remove Claude Haiku 3
  2. Our pick

    OpenAI

    GPT-4o mini

    Released Jul 18, 2024

    56/100
    • ECI126.6
    • Price$0.15 / $0.60
    • Context128K
    Full specs Remove GPT-4o mini

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

GPT-4o mini is our pick

GPT-4o mini is the better all-round choice, scoring 56/100 against Claude Haiku 3 (47). It leads on capability, price and inputs & features. Claude Haiku 3 wins on context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-4o miniCapabilities Index (ECI): GPT-4o mini 126.6 · Claude Haiku 3 118.4
  • Lowest priceGPT-4o miniGPT-4o mini $0.263 · Claude Haiku 3 $0.50 per 1M tokens (3:1 blend)
  • Longest contextClaude Haiku 3Claude Haiku 3 200,000 · GPT-4o mini 128,000 tokens
  • Widest inputsSame inputsClaude Haiku 3: Text, Images, PDFs · GPT-4o mini: Text, Images, PDFs
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightClaude Haiku 3GPT-4o mini
CapabilityCapabilities Index (ECI)50%3849
Price25%6477
Inputs & features15%6070
Context window10%3224
Overall100%47/10056/100
02 — Side by side

Every spec in one table

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

Claude Haiku 3 vs GPT-4o mini specifications side by side
SpecificationClaude Haiku 3AnthropicGPT-4o miniOpenAI
Capability
Capabilities Index (ECI)118.4126.6 (best)
ECI rank#143 of 148#135 of 148 (best)
GPQA DiamondGraduate-level science questions36.3%37.7% (best)
FrontierMath Tiers 1–3Research-level mathematics—0.7%
OTIS Mock AIME 2024–2025Competition mathematics1.8%6.9% (best)
SimpleQA VerifiedShort factual questions—8.3%
Price per million tokens
Input$0.25$0.15 (best)
Output$1.25$0.60 (best)
Cached input—$0.075
Blended (3:1)$0.50$0.263 (best)
Long-context rateSame rateSame rate
Price sourceMedian of 2 providersOfficial OpenAI API
Limits
Context window200,000 tokens (best)128,000 tokens
Max output4,096 tokens16,384 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesYes
AudioNoNo
VideoNoNo
ReasoningNoNo
Tool callingYesYes
Structured outputNoYes
Availability
WeightsProprietaryProprietary
API model ID—gpt-4o-mini
API providers221 (best)
ReleasedMar 13, 2024Jul 18, 2024
Knowledge cutoffAug 31, 2023Sep 2023
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.

  • Claude Haiku 3$5.00
  • GPT-4o mini$2.70
04 — Questions

Which should you choose?

Which is better: Claude Haiku 3 or GPT-4o mini?

GPT-4o mini is the better all-round choice, scoring 56/100 against Claude Haiku 3 (47). It leads on capability, price and inputs & features. Claude Haiku 3 wins on context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Claude Haiku 3 or GPT-4o mini?

GPT-4o mini is cheaper at $0.15 input / $0.60 output per million tokens (official OpenAI API price). Claude Haiku 3 costs $0.25 input / $1.25 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $0.263 per million tokens for GPT-4o mini versus $0.50 for Claude Haiku 3 (1.9× as much).

Which scores higher on benchmarks?

GPT-4o mini scores higher on the Capabilities Index (ECI): GPT-4o mini 126.6 (#135 of 148) and Claude Haiku 3 118.4 (#143 of 148). The confidence ranges of the top two overlap (120.5–128.5 vs 110.5–121.2), so treat the gap as small. On individual benchmarks: GPQA Diamond — GPT-4o mini 37.7%, Claude Haiku 3 36.3%; OTIS Mock AIME 2024–2025 — GPT-4o mini 6.9%, Claude Haiku 3 1.8%.

Which is better for coding?

There are no published SWE-bench Verified results for Claude Haiku 3 and GPT-4o mini yet, so there is no like-for-like coding score. On overall capability, GPT-4o mini 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?

Claude Haiku 3 has the largest context window at 200,000 tokens, against 128,000 for GPT-4o mini. Maximum output per response: Claude Haiku 3 up to 4,096, GPT-4o mini up to 16,384 tokens.

Which can read images, PDFs, audio or video?

Claude Haiku 3 accepts text, images and PDFs; GPT-4o mini accepts text, images and PDFs. They handle the same number of input types.

Are any of these open source?

No. Claude Haiku 3 and GPT-4o mini are proprietary and only available through APIs and apps.

Which is newer?

GPT-4o mini is the newest, released Jul 18, 2024. Claude Haiku 3 came out Mar 13, 2024. Knowledge cutoff: Claude Haiku 3 Aug 31, 2023, GPT-4o mini Sep 2023.

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

Related comparisons