AI Models · Open-Source vs Paid

Granite 4.2 8B Open vs GPT-3.5 Turbo (batch) Paid

Granite 4.2 8B vs GPT-3.5 Turbo (batch) compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Granite 4.2 8BOpenIBM
$0.06 /M input
$0.25 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window131K tokens
MultimodalNo
Self-hostYes
GPT-3.5 Turbo (batch)PaidOpenAI
$0.25 /M input
$0.75 /M outputManaged API (no infra to run)
TypeProprietary
Context window16K tokens
MultimodalNo
Self-hostNo
Choose Granite 4.2 8B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-3.5 Turbo (batch) if you want frontier capability through a managed API with zero infrastructure to run.

Granite 4.2 8B vs GPT-3.5 Turbo (batch) specs

SpecGranite 4.2 8BGPT-3.5 Turbo (batch)Winner
MakerIBMOpenAI
TypeOpen-weightProprietaryGranite 4.2 8B
Context window131K tokens16K tokensGranite 4.2 8B
Input price$0.06/M · free self-host$0.25/MGranite 4.2 8B
Output price$0.25/M · free self-host$0.75/MGranite 4.2 8B
Vision / multimodalNoNo
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Granite 4.2 8B
LicenseApache 2.0ProprietaryGranite 4.2 8B

Price gap & when to choose each

3.0×cheaper per output token

Granite 4.2 8B is ~3.0× cheaper than GPT-3.5 Turbo (batch) on output tokens ($0.25 vs $0.75 per M tokens).

Choose Granite 4.2 8B if…
  • You want to self-host or run on your cloud
  • You need the longer 131K context window
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose GPT-3.5 Turbo (batch) if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGranite 4.2 8BGPT-3.5 Turbo (batch)
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Granite 4.2 8B vs GPT-3.5 Turbo (batch)

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Granite 4.2 8B delivers 15× more intelligence per dollar.
Granite 4.2 8B
GPT-3.5 Turbo (batch)
Intelligence index
11.8
5.5
Coding index
22.4
10.7
GPQA
63.1%
29.7%
Humanity's Last Exam
9.7%
Long Context Reasoning
45%
SciCode
31.5%
τ-Bench Banking
7.6%
Terminal-Bench
18.4%
MMLU-Pro
46.2%
MATH-500
44.1%
Speed
95.3 tok/s
0 tok/s
Latency
0.25s
0s
Intelligence per $
110.3
7.3

Benchmark data by Artificial Analysis.

How Granite 4.2 8B and GPT-3.5 Turbo (batch) score

🏆 Best value & openness: Granite 4.2 8B (4.4 vs 2.6 / 5)
CriterionGranite 4.2 8BGPT-3.5 Turbo (batch)
Cost-efficiency5.05.0
Context window3.52.0
Openness5.01.5
Self-hosting5.01.0
Multimodality3.53.5

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Granite 4.2 8B Open

IBM · Open-weight

Granite 4.2 8B is a dense reasoning model from IBM. It is suited for mathematics, code generation, multilingual dialogue, and agentic workflows that need multi-step reasoning. It supports full, low-effort,...

GPT-3.5 Turbo (batch) Paid

OpenAI · Proprietary

GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Granite 4.0 Micro

Frequently asked questions

Is Granite 4.2 8B as good as GPT-3.5 Turbo (batch)?

Granite 4.2 8B is open-weight and competitive on many tasks, but GPT-3.5 Turbo (batch) may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Granite 4.2 8B locally?

Yes. Granite 4.2 8B has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. GPT-3.5 Turbo (batch) is API-only and cannot be self-hosted.

How much cheaper is Granite 4.2 8B?

Granite 4.2 8B costs $0.25/M output vs $0.75/M for GPT-3.5 Turbo (batch) — roughly 3x cheaper via API, and free if you self-host.

Granite 4.2 8B vs GPT-3.5 Turbo (batch) — which should I pick in 2026?

Choose Granite 4.2 8B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-3.5 Turbo (batch) if you want frontier capability through a managed API with zero infrastructure to run.

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