Solar Pro 3 vs Jamba Large
Solar Pro 3 comes out ahead, 55 to 30 on our weighted score, and it is the cheaper option too.
- Our pick
Upstage
Solar Pro 3
55/100- ECI—
- Price$0.25 / $0.25
- Context131K
AI21 LabsJamba Large
30/100- ECI—
- Price$2.00 / $8.00
- Context256K
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Make it a three-way comparison.
Solar Pro 3 is our pick
Solar Pro 3 is the better all-round choice, scoring 55/100 against Jamba Large (30). It leads on price. Jamba Large wins on context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceSolar Pro 3Solar Pro 3 $0.25 · Jamba Large $3.50 per 1M tokens (3:1 blend)
- Longest contextJamba LargeJamba Large 256,000 · Solar Pro 3 131,072 tokens
- Widest inputsSame inputsSolar Pro 3: Text · Jamba Large: Text
- Self-hostingJamba LargePublishes downloadable weights
| Measure | Weight | Solar Pro 3 | Jamba Large |
|---|---|---|---|
| Price | 50% | 78 | 24 |
| Inputs & features | 30% | 35 | 35 |
| Context window | 20% | 24 | 36 |
| Overall | 100% | 55/100 | 30/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Solar Pro 3Upstage | Jamba LargeAI21 Labs |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.25 (best) | $2.00 |
| Output | $0.25 (best) | $8.00 |
| Cached input | — | — |
| Blended (3:1) | $0.25 (best) | $3.50 |
| Long-context rate | Same rate | Same rate |
| Price source | Official Upstage API | Official AI21 Labs API |
| Limits | ||
| Context window | 131,072 tokens | 256,000 tokens (best) |
| Max output | 8,192 tokens (best) | 4,096 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | No | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yeslow · medium · high | No |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Availability | ||
| Weights | Proprietary | Open |
| API model ID | solar-pro3 | jamba-large |
| API providers | 2 (best) | 1 |
| Released | Jan 2026 | Jul 1, 2025 |
| Knowledge cutoff | Mar 2025 | Aug 22, 2024 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Solar Pro 3$3.00
- Jamba Large$36.00
Which should you choose?
Which is better: Solar Pro 3 or Jamba Large?
Solar Pro 3 is the better all-round choice, scoring 55/100 against Jamba Large (30). It leads on price. Jamba Large wins on context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Solar Pro 3 or Jamba Large?
Solar Pro 3 is cheaper at $0.25 input / $0.25 output per million tokens (official Upstage API price). Jamba Large costs $2.00 input / $8.00 output per million tokens (official AI21 Labs API price). At a typical mix of three input tokens to one output token, that is $0.25 per million tokens for Solar Pro 3 versus $3.50 for Jamba Large (14× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Solar Pro 3 has not been scored yet and Jamba Large has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Solar Pro 3 and Jamba Large yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
Jamba Large has the largest context window at 256,000 tokens, against 131,072 for Solar Pro 3. Maximum output per response: Solar Pro 3 up to 8,192, Jamba Large up to 4,096 tokens.
Which can read images, PDFs, audio or video?
Solar Pro 3 accepts text; Jamba Large accepts text. They handle the same number of input types.
Are any of these open source?
Jamba Large publishes its weights and can be self-hosted; Solar Pro 3 is proprietary.
Which is newer?
Solar Pro 3 is the newest, released Jan 2026. Jamba Large came out Jul 1, 2025. Knowledge cutoff: Solar Pro 3 Mar 2025, Jamba Large Aug 22, 2024.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
