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Gemini 2.0 Flash vs Gemini 2.5 Flash

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 · Gemini 2.5 Flash specs
Verdict by category
  • PriceGemini 2.5 Flash

    Gemini 2.5 Flash is roughly 1.3× cheaper on output tokens ($0.30 vs $0.40 per 1M).

  • Context windowTie

    Both ship a 1.0M-token context window.

  • BenchmarksTie

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

  • ModalitiesTie

    Both handle text, vision, audio.

  • OpennessTie

    Both are closed-weight, API-only.

On balance Gemini 2.5 Flash edges ahead, winning 1 of 5 categories against Gemini 2.0 Flash's 0. Gemini 2.5 Flash is roughly 1.3× cheaper on output tokens ($0.30 vs $0.40 per 1M). Both ship a 1.0M-token context window.

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, vision, audio), so the deciding factors are price, context, and raw quality. Both are closed-weight, API-only.

Gemini 2.5 Flash is the newer of the two, released 2 months after Gemini 2.0 Flash, 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 Gemini 2.5 Flash sees more deployments in rag and long context. 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 FlashGemini 2.5 Flash
ProviderGoogleGoogle
ReleasedFeb 2025Apr 2025
Modalitiestext, vision, audiotext, vision, audio
Context window1.0M tokens1.0M tokens
Max output,,
Input · 1M$0.10 / 1M tokens$0.075 / 1M tokens
Output · 1M$0.40 / 1M tokens$0.30 / 1M tokens
Knowledge cutoff2024-082025-01
Open weightsNoNo
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 $0.675
  • Heavy usage, 1M in / 500k out per day$9.00 vs $6.75
  • RAG workload, 5M in / 200k out per day$17.40 vs $13.05

Light usage, 100k in / 50k out per day: $0.900 vs $0.675 per month, model B comes out ahead. Heavy usage, 1M in / 500k out per day: $9.00 vs $6.75 per month, model B comes out ahead. RAG workload, 5M in / 200k out per day: $17.40 vs $13.05 per month, model B 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
  • Gemini 2.5 Flash$0.022

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
Pick Gemini 2.5 Flash if

Gemini 2.5 Flash fits when…

  • Cheap and fast
  • Long context
  • Solid vision
  • Cost-sensitive workloads, 1.3× cheaper than Gemini 2.0 Flash on output tokens.
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 ProGemini 2.5 Flash vs Gemini 3 Pro

Frequently asked

  • Is Gemini 2.0 Flash or Gemini 2.5 Flash cheaper?
    Gemini 2.5 Flash is cheaper at $0.30 / 1M tokens per million output tokens, vs $0.40 / 1M tokens for Gemini 2.0 Flash.
  • Which has the larger context window?
    Both Gemini 2.0 Flash and Gemini 2.5 Flash ship a 1.0M-token context window.
  • Is Gemini 2.0 Flash or Gemini 2.5 Flash better for coding?
    Both Gemini 2.0 Flash and Gemini 2.5 Flash 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?
    Neither model ships open weights, both are accessible only via their respective providers' APIs.
  • When were Gemini 2.0 Flash and Gemini 2.5 Flash released?
    Gemini 2.0 Flash was released by Google on 2025-02-05. Gemini 2.5 Flash was released by Google on 2025-04-09.
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