ZMIME
Comparison · 3 models · Updated Oct 4, 2026

Granite-4.0-H-Small vs Granite-4.0-H-Micro vs Apertus 8B

Too close to call on our weighted score (Granite-4.0-H-Micro 65, Granite-4.0-H-Small 63, Apertus 8B 56). The right pick depends on what you value most.

  1. IBM

    Granite-4.0-H-Small

    Released Oct 2, 2025

    63/100
    • ECI—
    • Price$0.064 / $0.265
    • Context131K
  2. IBM

    Granite-4.0-H-Micro

    Released Oct 2, 2025

    65/100
    • ECI—
    • Price$0.017 / $0.112
    • Context131K
  3. Swiss AI

    Apertus 8B

    Released Sep 2, 2025

    56/100
    • ECI—
    • Price$0.10 / $0.20
    • Context66K
01 — Verdict

Too close to call

It is close. Our weighted score puts them within 3 points (Granite-4.0-H-Micro 65/100, Granite-4.0-H-Small 63/100, Apertus 8B 56/100), so choose by what matters most for your work: Granite-4.0-H-Micro on price. 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 priceGranite-4.0-H-MicroGranite-4.0-H-Micro $0.041 · Granite-4.0-H-Small $0.114 · Apertus 8B $0.125 per 1M tokens (3:1 blend)
  • Longest contextGranite-4.0-H-Small and Granite-4.0-H-MicroGranite-4.0-H-Small 131,072 · Granite-4.0-H-Micro 131,072 · Apertus 8B 65,536 tokens
  • Widest inputsSame inputsGranite-4.0-H-Small: Text · Granite-4.0-H-Micro: Text · Apertus 8B: Text
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightGranite-4.0-H-SmallGranite-4.0-H-MicroApertus 8B
Price50%9510093
Inputs & features30%353525
Context window20%242412
Overall100%63/10065/10056/100

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.

Granite-4.0-H-Small vs Granite-4.0-H-Micro vs Apertus 8B specifications side by side
SpecificationGranite-4.0-H-SmallIBMGranite-4.0-H-MicroIBMApertus 8BSwiss AI
Capability
Capabilities Index (ECI)———
ECI rank———
Price per million tokens
Input$0.064$0.017 (best)$0.10
Output$0.265$0.112 (best)$0.20
Cached input———
Blended (3:1)$0.114$0.041 (best)$0.125
Long-context rateSame rateSame rateSame rate
Price sourceOfficial watsonx.ai APIMedian of 1 providersMedian of 1 providers
Limits
Context window131,072 tokens (best)131,072 tokens (best)65,536 tokens
Max output131,072 tokens (best)131,072 tokens (best)8,192 tokens
Inputs and features
TextYesYesYes
ImagesNoNoNo
PDFsNoNoNo
AudioNoNoNo
VideoNoNoNo
ReasoningNoNoNo
Tool callingYesYesYes
Structured outputYesYesNo
Availability
WeightsOpenOpenOpenApache-2.0
API model IDibm/granite-4-h-small——
API providers111
ReleasedOct 2, 2025Oct 2, 2025Sep 2, 2025
Knowledge cutoff——Sep 2025
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.

  • Granite-4.0-H-Small$1.17
  • Granite-4.0-H-Micro$0.394
  • Apertus 8B$1.40
04 — Questions

Which should you choose?

Which is better: Granite-4.0-H-Small, Granite-4.0-H-Micro or Apertus 8B?

It is close. Our weighted score puts them within 3 points (Granite-4.0-H-Micro 65/100, Granite-4.0-H-Small 63/100, Apertus 8B 56/100), so choose by what matters most for your work: Granite-4.0-H-Micro on price. 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, Granite-4.0-H-Small, Granite-4.0-H-Micro or Apertus 8B?

Granite-4.0-H-Micro is cheaper at $0.017 input / $0.112 output per million tokens (median across 1 API provider). Granite-4.0-H-Small costs $0.064 input / $0.265 output per million tokens (official watsonx.ai API price); Apertus 8B costs $0.10 input / $0.20 output per million tokens (median across 1 API provider). At a typical mix of three input tokens to one output token, that is $0.041 per million tokens for Granite-4.0-H-Micro versus $0.114 for Granite-4.0-H-Small (2.8× as much) and $0.125 for Apertus 8B (3.1× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. Granite-4.0-H-Small has not been scored yet, Granite-4.0-H-Micro has not been scored yet and Apertus 8B has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Granite-4.0-H-Small, Granite-4.0-H-Micro and Apertus 8B yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. All three support tool calling for agent workflows.

Which has the bigger context window?

Granite-4.0-H-Small and Granite-4.0-H-Micro have the largest context windows (131,072 and 131,072 tokens), against 65,536 for Apertus 8B. Maximum output per response: Granite-4.0-H-Small up to 131,072, Granite-4.0-H-Micro up to 131,072, Apertus 8B up to 8,192 tokens.

Which can read images, PDFs, audio or video?

Granite-4.0-H-Small accepts text; Granite-4.0-H-Micro accepts text; Apertus 8B accepts text. They handle the same number of input types.

Are any of these open source?

Yes, all three publish their weights (Apache-2.0), so you can self-host them.

Which is newer?

Granite-4.0-H-Small is the newest, released Oct 2, 2025. Granite-4.0-H-Micro came out Oct 2, 2025; Apertus 8B came out Sep 2, 2025. Knowledge cutoff: Apertus 8B Sep 2025.

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.