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Head-to-head comparison

granite 4.2 3b vs GPT-4o (2024-08-06)

granite 4.2 3b (IBM Granite) and GPT-4o (2024-08-06) (OpenAI) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 19 September 2026

As of 19 September 2026, GPT-4o (2024-08-06) holds the stronger ModelCap Index position (#158 vs #161); granite 4.2 3b offers the longer context window (131K vs 128K tokens); and granite 4.2 3b ships open weights.

Which should you choose?

Choose granite 4.2 3b if…

  • you need the longer context window — 131K tokens against 128K.
  • you want to self-host: granite 4.2 3b ships open weights while GPT-4o (2024-08-06) is api only.
  • Arena coding is your yardstick — 1378 against 1360.
  • AA Humanity's Last Exam is your yardstick — 6.6% against 2.3%.
  • you want the more recently listed model — granite 4.2 3b was listed 7 August 2026, GPT-4o (2024-08-06) 6 August 2024.

Choose GPT-4o (2024-08-06) if…

  • you want the stronger overall ModelCap Index position — #158 against #161 (31.0 vs 28.5 points).
  • you want provider choice — 2 listed API providers against 0.

granite 4.2 3b vs GPT-4o (2024-08-06): specs, pricing and context

Specification comparison of granite 4.2 3b and GPT-4o (2024-08-06)
Fieldgranite 4.2 3bIBM GraniteGPT-4o (2024-08-06)OpenAI
ModelCap Index position#161#158
Index score28.531.0
EvidenceMeasuredMeasured
Input price / 1M tokensUnlisted$2.50
Output price / 1M tokensUnlisted$10.00
Context window131K tokens128K tokens
Max output tokens—16K
API providers listed02
Weight accessOpen weightsAPI only
Input modalitiesTextText, Image, File
First listed7 August 20266 August 2024
PublisherIBM GraniteOpenAI

Evidence: 3 public benchmark observations across 3 boards · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: granite 4.2 3b vs GPT-4o (2024-08-06)

Public benchmark boards where granite 4.2 3b or GPT-4o (2024-08-06) has a published result
Boardgranite 4.2 3bGPT-4o (2024-08-06)Leads
Arena codingArena (LMArena)13781356–140113601352–1368granite 4.2 3b
AA Intelligence IndexArtificial Analysis9.1intelligence-index:v4.3:reasoning-unspecified—Only one result
AA τ²-Bench TelecomArtificial Analysis—28.9%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="GPT-4o (Aug '24)":reasoning=falseOnly one result
AA Humanity's Last ExamArtificial Analysis6.6%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Granite 4.2 3B":reasoning=true2.3%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="GPT-4o (Aug '24)":reasoning=falsegranite 4.2 3b

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

granite 4.2 3b vs GPT-4o (2024-08-06): common questions

Is granite 4.2 3b better than GPT-4o (2024-08-06)?

GPT-4o (2024-08-06) ranks higher on the ModelCap Index as of 19 September 2026: #158 against #161. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.

Is granite 4.2 3b cheaper than GPT-4o (2024-08-06)?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, granite 4.2 3b or GPT-4o (2024-08-06)?

granite 4.2 3b has the larger context window: 131K tokens against 128K.

Which is better for coding, granite 4.2 3b or GPT-4o (2024-08-06)?

Arena coding: granite 4.2 3b 1378, GPT-4o (2024-08-06) 1360 — granite 4.2 3b leads.

Are granite 4.2 3b and GPT-4o (2024-08-06) open-weight models?

granite 4.2 3b: Open weights. GPT-4o (2024-08-06): API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run granite 4.2 3b and GPT-4o (2024-08-06)?

ModelCap currently lists 0 API providers for granite 4.2 3b and 2 for GPT-4o (2024-08-06), from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this granite 4.2 3b vs GPT-4o (2024-08-06) comparison?

Every figure comes from the sealed ModelCap dataset published 19 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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