Granite 4.2 8B vs Solar Pro 3 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.
| Spec | Granite 4.2 8B | Solar Pro 3 | Winner |
|---|---|---|---|
| Maker | IBM | Upstage | – |
| Type | Open-weight | Proprietary | |
| Context window | 131K tokens | 131K tokens | = Tie |
| Input price | $0.06/M · free self-host | $0.15/M | |
| Output price | $0.25/M · free self-host | $0.6/M | |
| Vision / multimodal | No | No | – |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | Yes | No (API only) | |
| License | Apache 2.0 | Proprietary |
Granite 4.2 8B is ~2.4× cheaper than Solar Pro 3 on output tokens ($0.25 vs $0.6 per M tokens).
| Capability | Granite 4.2 8B | Solar Pro 3 |
|---|---|---|
| Open weights (downloadable) | ✓ | ✗ |
| Self-hostable | ✓ | ✗ |
| Runs fully offline | ✓ | ✗ |
| Vision / multimodal | ✗ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✗ |
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
| Criterion | Granite 4.2 8B | Solar Pro 3 |
|---|---|---|
| Cost-efficiency | 5.0 | 5.0 |
| Context window | 3.5 | 3.5 |
| Openness | 5.0 | 1.5 |
| Self-hosting | 5.0 | 1.0 |
| Multimodality | 3.5 | 3.5 |
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.
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 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized...
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Granite 4.2 8B is open-weight and competitive on many tasks, but Solar Pro 3 may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.
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 3 is API-only and cannot be self-hosted.
Granite 4.2 8B costs $0.25/M output vs $0.6/M for Solar Pro 3 — roughly 2x cheaper via API, and free if you self-host.
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 3 if you want frontier capability through a managed API with zero infrastructure to run.
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