Palmyra X5 vs Jamba Large
Palmyra X5 comes out ahead, 48 to 30 on our weighted score, and it is the cheaper option too.
- Our pick
Writer
Palmyra X5
48/100- ECI—
- Price$0.60 / $6.00
- Context1M
AI21 LabsJamba Large
30/100- ECI—
- Price$2.00 / $8.00
- Context256K
Add a model
Make it a three-way comparison.
Palmyra X5 is our pick
Palmyra X5 is the better all-round choice, scoring 48/100 against Jamba Large (30). It leads on price, inputs & features and 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 pricePalmyra X5Palmyra X5 $1.95 · Jamba Large $3.50 per 1M tokens (3:1 blend)
- Longest contextPalmyra X5Palmyra X5 1,000,000 · Jamba Large 256,000 tokens
- Widest inputsPalmyra X5Palmyra X5: Text, Images · Jamba Large: Text
- Self-hostingJamba LargePublishes downloadable weights
| Measure | Weight | Palmyra X5 | Jamba Large |
|---|---|---|---|
| Price | 50% | 36 | 24 |
| Inputs & features | 30% | 60 | 35 |
| Context window | 20% | 60 | 36 |
| Overall | 100% | 48/100 | 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 | Palmyra X5Writer | Jamba LargeAI21 Labs |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.60 (best) | $2.00 |
| Output | $6.00 (best) | $8.00 |
| Cached input | — | — |
| Blended (3:1) | $1.95 (best) | $3.50 |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 1 providers | Official AI21 Labs API |
| Limits | ||
| Context window | 1,000,000 tokens (best) | 256,000 tokens |
| Max output | 8,192 tokens (best) | 4,096 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | No |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Availability | ||
| Weights | Proprietary | Open |
| API model ID | — | jamba-large |
| API providers | 1 | 1 |
| Released | Apr 28, 2025 | Jul 1, 2025 |
| Knowledge cutoff | — | 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.
- Palmyra X5$18.00
- Jamba Large$36.00
Which should you choose?
Which is better: Palmyra X5 or Jamba Large?
Palmyra X5 is the better all-round choice, scoring 48/100 against Jamba Large (30). It leads on price, inputs & features and 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, Palmyra X5 or Jamba Large?
Palmyra X5 is cheaper at $0.60 input / $6.00 output per million tokens (median across 1 API provider). 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 $1.95 per million tokens for Palmyra X5 versus $3.50 for Jamba Large (1.8× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Palmyra X5 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 Palmyra X5 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?
Palmyra X5 has the largest context window at 1,000,000 tokens, against 256,000 for Jamba Large. Maximum output per response: Palmyra X5 up to 8,192, Jamba Large up to 4,096 tokens.
Which can read images, PDFs, audio or video?
Palmyra X5 accepts text and images; Jamba Large accepts text. Palmyra X5 handles the widest range of inputs.
Are any of these open source?
Jamba Large publishes its weights and can be self-hosted; Palmyra X5 is proprietary.
Which is newer?
Jamba Large is the newest, released Jul 1, 2025. Palmyra X5 came out Apr 28, 2025. Knowledge cutoff: 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.
