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Gemini 2.0 Flash 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

Gemini 2.0 Flash specs · Jamba 1.5 Large specs
Verdict by category
  • PriceGemini 2.0 Flash

    Gemini 2.0 Flash is roughly 20.0× cheaper on output tokens ($0.40 vs $8.00 per 1M).

  • Context windowGemini 2.0 Flash

    Gemini 2.0 Flash accepts 1.0M tokens vs 256K, 4.1× 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.

  • ModalitiesGemini 2.0 Flash

    Gemini 2.0 Flash supports 3 modalities (text, vision, audio) vs 1 for Jamba 1.5 Large.

  • OpennessJamba 1.5 Large

    Jamba 1.5 Large ships open weights (Jamba Open Model License); Gemini 2.0 Flash is API-only.

On balance Gemini 2.0 Flash edges ahead, winning 3 of 5 categories against Jamba 1.5 Large's 1. Gemini 2.0 Flash is roughly 20.0× cheaper on output tokens ($0.40 vs $8.00 per 1M). Gemini 2.0 Flash accepts 1.0M tokens vs 256K, 4.1× the room for long documents and codebases.

No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. They differ in modality coverage, Gemini 2.0 Flash handles text, vision, audio while Jamba 1.5 Large handles text, which can be the deciding factor before you even look at benchmarks. Jamba 1.5 Large ships open weights (Jamba Open Model License); Gemini 2.0 Flash is API-only.

Gemini 2.0 Flash is the newer of the two, released 6 months after Jamba 1.5 Large, which usually means a more recent knowledge cutoff and updated safety post-training. Gemini 2.0 Flash is usually picked for rag and long context 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

SpecGemini 2.0 FlashJamba 1.5 Large
ProviderGoogleAI21
ReleasedFeb 2025Aug 2024
Modalitiestext, vision, audiotext
Context window1.0M tokens256K tokens
Max output,,
Input · 1M$0.10 / 1M tokens$2.00 / 1M tokens
Output · 1M$0.40 / 1M tokens$8.00 / 1M tokens
Knowledge cutoff2024-08,
Open weightsNoYes (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$0.900 vs $18.00
  • Heavy usage, 1M in / 500k out per day$9.00 vs $180
  • RAG workload, 5M in / 200k out per day$17.40 vs $348

Light usage, 100k in / 50k out per day: $0.900 vs $18.00 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $9.00 vs $180 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $17.40 vs $348 per month, model A comes out ahead.

Price calculator

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

  • Gemini 2.0 Flash$0.030
  • 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 Gemini 2.0 Flash if

Gemini 2.0 Flash fits when…

  • Long context
  • Cheap
  • Cost-sensitive workloads, 20.0× cheaper than Jamba 1.5 Large on output tokens.
  • Long-context tasks, handles 1.0M tokens vs 256K for Jamba 1.5 Large.
  • Multimodal needs covering vision, audio.
Pick Jamba 1.5 Large if

Jamba 1.5 Large fits when…

  • 256k context
  • Efficient long-context inference
  • Open weights
  • Self-hosting and on-prem requirements, open weights (Jamba Open Model License).
Don't want either?

Consider Gemini 3 Pro

Google's late-2025 flagship, set new benchmarks on long-context, vision, and reasoning at competitive pricing.

See Gemini 3 Pro specsGemini 2.0 Flash vs Gemini 3 ProJamba 1.5 Large vs Gemini 3 Pro

Frequently asked

  • Is Gemini 2.0 Flash or Jamba 1.5 Large cheaper?
    Gemini 2.0 Flash is cheaper at $0.40 / 1M tokens per million output tokens, vs $8.00 / 1M tokens for Jamba 1.5 Large.
  • Which has the larger context window?
    Gemini 2.0 Flash accepts 1.0M tokens vs 256K for Jamba 1.5 Large.
  • Is Gemini 2.0 Flash or Jamba 1.5 Large better for coding?
    Both Gemini 2.0 Flash 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?
    Jamba 1.5 Large ships open weights (Jamba Open Model License). Gemini 2.0 Flash is API-only.
  • When were Gemini 2.0 Flash and Jamba 1.5 Large released?
    Gemini 2.0 Flash was released by Google on 2025-02-05. Jamba 1.5 Large was released by AI21 on 2024-08-22.
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