ZMIME
Comparison · 3 models · Updated Nov 2, 2026

Hermes 3 405B Instruct vs Gemma 2 27B vs Aya Expanse 32B

Too close to call on our weighted score (Aya Expanse 32B 32, Hermes 3 405B Instruct 29, Gemma 2 27B 28). The right pick depends on what you value most.

  1. Nous Research

    Hermes 3 405B Instruct

    Released Aug 16, 2024

    29/100
    • ECI—
    • Price$1.00 / $1.00
    • Context131K
  2. Google

    Gemma 2 27B

    Released Jul 13, 2024

    28/100
    • ECI122.1
    • Price$0.65 / $0.65
    • Context8K
  3. Cohere

    Aya Expanse 32B

    Released Oct 24, 2024

    32/100
    • ECI—
    • Price$0.50 / $1.50
    • Context128K
01 — Verdict

Too close to call

It is close. Our weighted score puts them within 3 points (Aya Expanse 32B 32/100, Hermes 3 405B Instruct 29/100, Gemma 2 27B 28/100), so choose by what matters most for your work: Gemma 2 27B on price and Hermes 3 405B Instruct for long inputs. 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 priceGemma 2 27BGemma 2 27B $0.65 · Aya Expanse 32B $0.75 · Hermes 3 405B Instruct $1.00 per 1M tokens (3:1 blend)
  • Longest contextHermes 3 405B InstructHermes 3 405B Instruct 131,072 · Aya Expanse 32B 128,000 · Gemma 2 27B 8,192 tokens
  • Widest inputsSame inputsHermes 3 405B Instruct: Text · Gemma 2 27B: Text · Aya Expanse 32B: Text
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightHermes 3 405B InstructGemma 2 27BAya Expanse 32B
Price50%485653
Inputs & features30%000
Context window20%25024
Overall100%29/10028/10032/100

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.

Hermes 3 405B Instruct vs Gemma 2 27B vs Aya Expanse 32B specifications side by side
SpecificationHermes 3 405B InstructNous ResearchGemma 2 27BGoogleAya Expanse 32BCohere
Capability
Capabilities Index (ECI)—122.1—
ECI rank—#152 of 165—
GPQA DiamondGraduate-level science questions—36.5%—
OTIS Mock AIME 2024–2025Competition mathematics—1.4%—
Price per million tokens
Input$1.00$0.65$0.50 (best)
Output$1.00$0.65 (best)$1.50
Cached input———
Blended (3:1)$1.00$0.65 (best)$0.75
Long-context rateSame rateSame rateSame rate
Price sourceMedian of 5 providersMedian of 3 providersOfficial Cohere API
Limits
Context window131,072 tokens (best)8,192 tokens128,000 tokens
Max output16,384 tokens (best)2,048 tokens4,000 tokens
Inputs and features
TextYesYesYes
ImagesNoNoNo
PDFsNoNoNo
AudioNoNoNo
VideoNoNoNo
ReasoningNoNoNo
Tool callingNoNoNo
Structured outputNoNoNo
Availability
WeightsOpenOpenOpenCC-BY-NC-4.0
API model ID——c4ai-aya-expanse-32b
API providers5 (best)32
ReleasedAug 16, 2024Jul 13, 2024Oct 24, 2024
Knowledge cutoffDec 31, 2023Jun 30, 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.

  • Hermes 3 405B Instruct$12.00
  • Gemma 2 27B$7.80
  • Aya Expanse 32B$8.00
04 — Questions

Which should you choose?

Which is better: Hermes 3 405B Instruct, Gemma 2 27B or Aya Expanse 32B?

It is close. Our weighted score puts them within 3 points (Aya Expanse 32B 32/100, Hermes 3 405B Instruct 29/100, Gemma 2 27B 28/100), so choose by what matters most for your work: Gemma 2 27B on price and Hermes 3 405B Instruct for long inputs. 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, Hermes 3 405B Instruct, Gemma 2 27B or Aya Expanse 32B?

Gemma 2 27B is cheaper at $0.65 input / $0.65 output per million tokens (median across 3 API providers). Aya Expanse 32B costs $0.50 input / $1.50 output per million tokens (official Cohere API price); Hermes 3 405B Instruct costs $1.00 input / $1.00 output per million tokens (median across 5 API providers). At a typical mix of three input tokens to one output token, that is $0.65 per million tokens for Gemma 2 27B versus $0.75 for Aya Expanse 32B (1.2× as much) and $1.00 for Hermes 3 405B Instruct (1.5× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. Hermes 3 405B Instruct has not been scored yet, Gemma 2 27B has an ECI of 122.1 and Aya Expanse 32B has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Hermes 3 405B Instruct, Gemma 2 27B and Aya Expanse 32B yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that Hermes 3 405B Instruct, Gemma 2 27B and Aya Expanse 32B does not support tool calling, which most coding agents need.

Which has the bigger context window?

Hermes 3 405B Instruct has the largest context window at 131,072 tokens, against 128,000 for Aya Expanse 32B and 8,192 for Gemma 2 27B. Maximum output per response: Hermes 3 405B Instruct up to 16,384, Gemma 2 27B up to 2,048, Aya Expanse 32B up to 4,000 tokens.

Which can read images, PDFs, audio or video?

Hermes 3 405B Instruct accepts text; Gemma 2 27B accepts text; Aya Expanse 32B accepts text. They handle the same number of input types.

Are any of these open source?

Yes, all three publish their weights (CC-BY-NC-4.0), so you can self-host them.

Which is newer?

Aya Expanse 32B is the newest, released Oct 24, 2024. Hermes 3 405B Instruct came out Aug 16, 2024; Gemma 2 27B came out Jul 13, 2024. Knowledge cutoff: Hermes 3 405B Instruct Dec 31, 2023, Gemma 2 27B Jun 30, 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 Nov 2, 2026.