Claude Fable 5.1 (batch) Paid vs 
Solar Pro 3 Paid
Claude Fable 5.1 (batch) vs Solar Pro 3 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Claude Fable 5.1 (batch) — full profile › · Solar Pro 3 — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$25 /M outputManaged API (no infra to run)
$0.6 /M outputManaged API (no infra to run)
Claude Fable 5.1 (batch) vs Solar Pro 3 specs
| Spec | Claude Fable 5.1 (batch) | Solar Pro 3 | Winner |
|---|---|---|---|
| Maker | Anthropic | Upstage | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 131K tokens | |
| Input price | $5/M | $0.15/M | |
| Output price | $25/M | $0.6/M | |
| Vision / multimodal | Yes | No | |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
Solar Pro 3 is ~42× cheaper than Claude Fable 5.1 (batch) on output tokens ($0.6 vs $25 per M tokens).
- You want frontier performance through a managed API
- You need the longer 1M context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Claude Fable 5.1 (batch) | Solar Pro 3 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: Claude Fable 5.1 (batch) vs Solar Pro 3
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Claude Fable 5.1 (batch) and Solar Pro 3 score
| Criterion | Claude Fable 5.1 (batch) | Solar Pro 3 |
|---|---|---|
| Cost-efficiency | 3.0 | 5.0 |
| Context window | 5.0 | 3.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 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.
What each model is
Claude Fable 5.1 (batch) Paid
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Solar Pro 3 Paid
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...
Frequently asked questions
Claude Fable 5.1 (batch) vs Solar Pro 3 — which is cheaper?
Solar Pro 3 is cheaper on output ($0.6/M vs $25/M).
Which has the larger context window?
Claude Fable 5.1 (batch) offers the larger context window (1M tokens).
Claude Fable 5.1 (batch) vs Solar Pro 3 — which should I pick in 2026?
Choose Solar Pro 3 for the lower output price ($0.6/M vs $25/M). Choose Claude Fable 5.1 (batch) if you need the larger 1M context window.
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