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Claude Opus 4.5 vs Gemini 2.5 Pro Preview 05-06

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Opus 4.5 and Gemini 2.5 Pro Preview 05-06.

Anthropic

Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

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Google

Gemini 2.5 Pro Preview 05-06

Gemini 2.5 Pro is Google’s state-of-the-art AI model designed for advanced reasoning, coding, mathematics, and scientific tasks. It employs “thinking” capabilities, enabling it to reason through responses with enhanced accuracy...

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Technical Specifications

SpecificationClaude Opus 4.5Gemini 2.5 Pro Preview 05-06
ProviderAnthropicGoogle
Context Window200,000 tokens1,048,576 tokens
Agent Suitability93/100N/A
Time to First Token (TTFT)550 msN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2025-11-242025-05-07

API Pricing Comparison

Input Price per Million Tokens

Claude Opus 4.5

$5.00

Gemini 2.5 Pro Preview 05-06

$1.25

Output Price per Million Tokens

Claude Opus 4.5

$25.00

Gemini 2.5 Pro Preview 05-06

$10.00

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
9280.0%vsN/A
Claude Opus 4.5
Gemini 2.5 Pro Preview 05-06
HumanEvalPython coding & logic synthesis
9420.0%vsN/A
Claude Opus 4.5
Gemini 2.5 Pro Preview 05-06
MATHComplex mathematical problem solving
8750.0%vsN/A
Claude Opus 4.5
Gemini 2.5 Pro Preview 05-06
GPQAGraduate-level expert reasoning
7600.0%vsN/A
Claude Opus 4.5
Gemini 2.5 Pro Preview 05-06
HellaSwagCommonsense reasoning and inference
9720.0%vsN/A
Claude Opus 4.5
Gemini 2.5 Pro Preview 05-06
MT-BenchMulti-turn conversation flow quality
955.0%vsN/A
Claude Opus 4.5
Gemini 2.5 Pro Preview 05-06

Claude Opus 4.5 Quirks & Gotchas

  • Deep analytical reasoning — best for structured problem-solving
  • 200K context is limiting compared to 1M of Opus 4.6+ — upgrade for long-document tasks

Gemini 2.5 Pro Preview 05-06 Quirks & Gotchas

No developer gotchas reported.