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AI model comparison

Claude Opus 4.5 vs Gemini 2.5 Pro

Compare pricing, context limits, supported inputs and deployment options to choose a model for your workflow.

Claude Opus 4.5 from Anthropic lists 200K context, 64K maximum output, $5.00 input per 1M tokens, $25.00 output per 1M tokens. Gemini 2.5 Pro from Google lists 1.05M context, 65.54K maximum output, $1.25 input per 1M tokens, $10.00 output per 1M tokens. Compare the inputs, outputs and deployment options below to see which fits your workflow.

Side-by-sideCapabilities and practical differences

Anthropic

Claude Opus 4.5

Claude Opus 4.5 from Anthropic: Flagship Claude model for deep reasoning, coding, and long-horizon agents.

Context
200K
Max output
64K
Input / 1M tokens
$5.00
Output / 1M tokens
$25.00

Accepts

  • Text input
  • Image input
  • PDF input

Produces

  • Text output
Full model profilegithub.com ↗
VS

Google

Gemini 2.5 Pro

Gemini 2.5 Pro from Google: Google's proven reasoning model for coding, math, and multimodal analysis.

Context
1.05M
Max output
65.54K
Input / 1M tokens
$1.25
Output / 1M tokens
$10.00

Accepts

  • Text input
  • Image input
  • Audio input
  • Video input
  • PDF input

Produces

  • Text output
Full model profilegithub.com ↗

At a glance

Key differences

Compare the available figures below, then try both models on the work you need to do.

Gemini 2.5 Pro

  • Context capacity: 1.05M
  • Maximum output: 65.54K
  • Input price: $1.25
  • Output price: $10.00

Context capacity

Higher listed limit

Claude Opus 4.5:200K

Gemini 2.5 Pro:1.05M

Gemini 2.5 Pro

Maximum output

Higher listed limit

Claude Opus 4.5:64K

Gemini 2.5 Pro:65.54K

Gemini 2.5 Pro

Input price

Lower listed token rate

Claude Opus 4.5:$5.00

Gemini 2.5 Pro:$1.25

Gemini 2.5 Pro

Output price

Lower listed token rate

Claude Opus 4.5:$25.00

Gemini 2.5 Pro:$10.00

Gemini 2.5 Pro

Specifications

Pricing, limits and capabilities

Specifications for Claude Opus 4.5 and Gemini 2.5 Pro. Higher limits and lower prices describe these figures only.
SpecificationClaude Opus 4.5Gemini 2.5 Pro
ProviderAnthropicGoogle
Listed pricing routeAnthropicGoogle
Model familyclaude-opusgemini-pro
Accepted inputstext, image, pdftext, image, audio, video, pdf
Produced outputstexttext
Context window200K1.05MHigher
Max output64K65.54KHigher
Input price / 1M$5.00$1.25Lower
Output price / 1M$25.00$10.00Lower
Reasoning modeDocumentedDocumented
Tool callingDocumentedDocumented
Image inputDocumentedDocumented
Audio inputNot documentedDocumented
Structured outputNot documentedDocumented
LicenseProprietaryProprietary

Workload guidance

Which model should you choose?

Consider Gemini 2.5 Pro if you need larger context or larger maximum output or a lower listed input rate or a lower listed output rate. Test both on the same representative examples and judge the output against your acceptance criteria. Include tool failures, retries and the time to a completed task.

Documentation and model profiles

Explore each model’s features, API requirements and licence terms in the sources below.

Questions people ask

It brings together documented inputs and outputs, token limits, deployment terms and available pricing. When both models have source-linked, verified results on a shared benchmark, those results are shown with their individual sources. The comparison is a starting point for evaluating your own workload.

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