LLM·Dex
Newsletter

Granite 3.1 2B vs Jamba 1.5 Large

A complete head-to-head: pricing, context window, benchmarks, modality coverage, and openness, with a programmatic verdict synthesized from the underlying data.

Updated

Granite 3.1 2B specs · Jamba 1.5 Large specs
Verdict by category
  • PriceJamba 1.5 Large

    Jamba 1.5 Large publishes pricing ($8.00 / 1M output tokens) while Granite 3.1 2B does not.

  • Context windowJamba 1.5 Large

    Jamba 1.5 Large accepts 256K tokens vs 128K, 2.0× the room for long documents and codebases.

  • BenchmarksTie

    No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores.

  • ModalitiesTie

    Both handle text.

  • OpennessTie

    Both ship open weights, self-host either one.

On balance Jamba 1.5 Large edges ahead, winning 2 of 5 categories against Granite 3.1 2B's 0. Jamba 1.5 Large publishes pricing ($8.00 / 1M output tokens) while Granite 3.1 2B does not. Jamba 1.5 Large accepts 256K tokens vs 128K, 2.0× the room for long documents and codebases.

No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. Both target the same set of modalities (text), so the deciding factors are price, context, and raw quality. Both ship open weights, self-host either one.

Granite 3.1 2B is the newer of the two, released 4 months after Jamba 1.5 Large, which usually means a more recent knowledge cutoff and updated safety post-training. Granite 3.1 2B is usually picked for edge deployment and on device workloads, while Jamba 1.5 Large sees more deployments in long context and rag. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.

Side-by-side specs

SpecGranite 3.1 2BJamba 1.5 Large
ProviderOtherAI21
ReleasedDec 2024Aug 2024
Modalitiestexttext
Context window128K tokens256K tokens
Max output,,
Input · 1MPricing not published$2.00 / 1M tokens
Output · 1MPricing not published$8.00 / 1M tokens
Knowledge cutoff,,
Open weightsYes (Apache-2.0)Yes (Jamba Open Model License)
API availableYesYes

Pricing at scale

What you'd actually pay at typical workloads. Numbers come from each model's published per-million-token rates.

  • Light usage, 100k in / 50k out per day, vs $18.00
  • Heavy usage, 1M in / 500k out per day, vs $180
  • RAG workload, 5M in / 200k out per day, vs $348

Light usage, 100k in / 50k out per day: pricing not directly comparable (one or both models are missing public per-token rates). Heavy usage, 1M in / 500k out per day: pricing not directly comparable (one or both models are missing public per-token rates). RAG workload, 5M in / 200k out per day: pricing not directly comparable (one or both models are missing public per-token rates).

Price calculator

Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.

  • Granite 3.1 2BPricing unavailable
  • Jamba 1.5 Large$0.600

Benchmarks compared

Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.

Benchmark scores not yet available. We only publish numbers we can source from official model cards or independent leaderboards, see methodology.
Pick Granite 3.1 2B if

Granite 3.1 2B fits when…

  • Apache-2.0
  • Tiny enterprise model
Pick Jamba 1.5 Large if

Jamba 1.5 Large fits when…

  • 256k context
  • Efficient long-context inference
  • Open weights
  • Long-context tasks, handles 256K tokens vs 128K for Granite 3.1 2B.
Don't want either?

Consider DBRX

Databricks' 132B MoE, a notable 2024 open-weight release tuned for enterprise.

See DBRX specsGranite 3.1 2B vs DBRXJamba 1.5 Large vs DBRX

Frequently asked

  • Is Granite 3.1 2B or Jamba 1.5 Large cheaper?
    Per-token pricing isn't published for at least one of these models, check each model's spec page for current rates.
  • Which has the larger context window?
    Jamba 1.5 Large accepts 256K tokens vs 128K for Granite 3.1 2B.
  • Is Granite 3.1 2B or Jamba 1.5 Large better for coding?
    Both Granite 3.1 2B and Jamba 1.5 Large are competitive on coding benchmarks. See each model's individual spec page for HumanEval and SWE-bench scores where published. For an opinionated pick, consult our Best LLM for Coding ranking.
  • Are either of these models open source?
    Both ship with open weights. Granite 3.1 2B is licensed under Apache-2.0; Jamba 1.5 Large under Jamba Open Model License.
  • When were Granite 3.1 2B and Jamba 1.5 Large released?
    Granite 3.1 2B was released by Other on 2024-12-18. Jamba 1.5 Large was released by AI21 on 2024-08-22.
Friday digest

The week's AI launches, in your inbox.

One short email every Friday, new models, leaks, and quietly-shipped APIs you missed.