LLM·Dex

Claude Opus 4.7 vs Gemini 3 Flash

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

Verdict by category
  • PriceTie

    Neither model publishes per-token API pricing.

  • Context windowGemini 3 Flash

    Gemini 3 Flash accepts 1.0M tokens vs 500K, 2.1× 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 3 Flash

    Gemini 3 Flash supports 4 modalities (text, vision, audio, video) vs 2 for Claude Opus 4.7.

  • OpennessTie

    Both are closed-weight, API-only.

On balance Gemini 3 Flash edges ahead, winning 2 of 5 categories against Claude Opus 4.7's 0. Neither model publishes per-token API pricing. Gemini 3 Flash accepts 1.0M tokens vs 500K, 2.1× 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, Claude Opus 4.7 handles text, vision while Gemini 3 Flash handles text, vision, audio, video, which can be the deciding factor before you even look at benchmarks. Both are closed-weight, API-only.

Claude Opus 4.7 is the newer of the two, released 2 months after Gemini 3 Flash, which usually means a more recent knowledge cutoff and updated safety post-training. Claude Opus 4.7 is usually picked for coding llm and coding agent workloads, while Gemini 3 Flash sees more deployments in rag and summarization. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.

Side-by-side specs

SpecClaude Opus 4.7Gemini 3 Flash
ProviderAnthropicGoogle
ReleasedFeb 2026Dec 2025
Modalitiestext, visiontext, vision, audio, video
Context window500K tokens1.0M tokens
Max output,65.5K tokens
Input · 1MPricing not publishedPricing not published
Output · 1MPricing not publishedPricing not published
Knowledge cutoff,2025-01
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, vs ,
  • Heavy usage, 1M in / 500k out per day, vs ,
  • RAG workload, 5M in / 200k out per day, vs ,

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.

  • Claude Opus 4.7Pricing unavailable
  • Gemini 3 FlashPricing unavailable

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 Claude Opus 4.7 if

Claude Opus 4.7 fits when…

  • Strongest published SWE-bench Verified scores in agent settings
  • Best-in-class writing quality and voice control
  • Excellent long-context recall and citation discipline
Pick Gemini 3 Flash if

Gemini 3 Flash fits when…

  • 1M-token context at mid-tier price
  • Very fast, good for interactive UX
  • Strong vision support
  • Long-context tasks, handles 1.0M tokens vs 500K for Claude Opus 4.7.
  • Multimodal needs covering audio, video.
Don't want either?

Consider Claude Sonnet 4.6

Anthropic's mid-tier 4.6 release, the workhorse model behind most production Anthropic deployments.

Frequently asked

  • Is Claude Opus 4.7 or Gemini 3 Flash 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?
    Gemini 3 Flash accepts 1.0M tokens vs 500K for Claude Opus 4.7.
  • Is Claude Opus 4.7 or Gemini 3 Flash better for coding?
    Both Claude Opus 4.7 and Gemini 3 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 Claude Opus 4.7 and Gemini 3 Flash released?
    Claude Opus 4.7 was released by Anthropic on 2026-02-15. Gemini 3 Flash was released by Google on 2025-12-09.
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