AI Models · Open-Source vs Paid

Granite 4.2 8B Open vs Solar Pro 4 Paid

Granite 4.2 8B vs Solar Pro 4 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
Solar Pro 4PaidUpstage
$0.09 /M input
$0.36 /M outputManaged API (no infra to run)
TypeProprietary
Context window524K 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 Solar Pro 4 if you want frontier capability through a managed API with zero infrastructure to run.

Granite 4.2 8B vs Solar Pro 4 specs

SpecGranite 4.2 8BSolar Pro 4Winner
MakerIBMUpstage
TypeOpen-weightProprietaryGranite 4.2 8B
Context window131K tokens524K tokensSolar Pro 4
Input price$0.06/M · free self-host$0.09/MGranite 4.2 8B
Output price$0.25/M · free self-host$0.36/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

Choose Granite 4.2 8B if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Solar Pro 4 if…
  • You want frontier performance through a managed API
  • You need the longer 524K context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGranite 4.2 8BSolar Pro 4
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Granite 4.2 8B vs Solar Pro 4

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

Granite 4.2 8B delivers 2.1× more intelligence per dollar.
Granite 4.2 8B
Solar Pro 4
Intelligence index
11.8
28.2
Coding index
22.4
52.7
GPQA
63.1%
89.1%
Humanity's Last Exam
9.7%
29.2%
Long Context Reasoning
45%
74%
SciCode
31.5%
44.6%
τ-Bench Banking
7.6%
23.3%
Terminal-Bench
18.4%
57.3%
Speed
95.3 tok/s
50.1 tok/s
Latency
0.25s
1.09s
Intelligence per $
110.3
53.7

Benchmark data by Artificial Analysis.

How Granite 4.2 8B and Solar Pro 4 score

🏆 Best value & openness: Granite 4.2 8B (4.4 vs 3.1 / 5)
CriterionGranite 4.2 8BSolar Pro 4
Cost-efficiency5.05.0
Context window3.54.5
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,...

Solar Pro 4 Paid

Upstage · Proprietary

Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in office productivity, document-intensive...

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 Solar Pro 4?

Granite 4.2 8B is open-weight and competitive on many tasks, but Solar Pro 4 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. Solar Pro 4 is API-only and cannot be self-hosted.

Granite 4.2 8B vs Solar Pro 4 — 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 Solar Pro 4 if you want frontier capability through a managed API with zero infrastructure to run.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →