Claude 3 Opus
Unknown • Unknown
Context WindowUnknown
Knowledge CutoffUnknown
Claude 3 Opus vs Gemini 2.5 Pro
Both premium reasoning models — Gemini 2.5 Pro wins on context window and multimodal depth, Claude 3 Opus on nuanced analysis.
Gemini 2.5 Pro
Google • text+image+file+audio+video->text
Context Window1.0M
Knowledge CutoffJun 17, 2025
Editorial Verdict
Claude 3 Opus is optimized for depth of reasoning; Gemini 2.5 Pro combines strong reasoning with versatility and context.
Claude 3 Opus and Gemini 2.5 Pro are both flagship reasoning models, but they take different approaches. Opus emphasizes careful, deliberate reasoning with state-of-the-art alignment. Gemini 2.5 Pro combines strong reasoning with massive context and multimodal native capabilities. For pure analysis and reasoning depth, Opus leads. For reasoning plus context plus multimodal, Gemini 2.5 Pro is more versatile.
Claude 3 Opus
- Highest quality reasoning on complex, multi-step analytical tasks
- Industry-leading instruction following and task completion reliability
- More consistent and nuanced outputs on ambiguous, open-ended queries
Best for: High-stakes analysis, research synthesis, and tasks requiring maximum reasoning quality
Gemini 2.5 Pro
- 1M token context for reasoning over entire knowledge bases or document collections
- Native multimodal reasoning with video and audio understanding built in
- Strong coding capabilities combined with massive context for repository-level tasks
Best for: Multimodal reasoning over large documents or codebases, and versatile production applications
Pricing sourced from OpenRouter — updates as their catalog changes.
Pricing Comparison
All values pull from OpenRouter and update as their catalog changes.
| Metric | Claude 3 Opus | Gemini 2.5 Pro | Winner |
|---|---|---|---|
| Input (per 1M tokens) | Custom | $1.25 | 🏆 Gemini 2.5 Pro |
| Output (per 1M tokens) | Custom | $10.00 | 🏆 Gemini 2.5 Pro |
| Request fee | N/A | N/A | N/A |
| Image fee | N/A | $0.000001 | 🏆 Gemini 2.5 Pro |
Cost Estimator
Estimate monthly billing using real OpenRouter prices.
Claude 3 Opus Total
VariableGemini 2.5 Pro Total
$193.75Savings unavailable (pricing not published for one model).
Capability Signals
Scores are directional estimates from model metadata — not official benchmark results.
Claude 3 OpusMMLU Signal (Reasoning)Gemini 2.5 Pro
N/A
92%
Claude 3 OpusHumanEval Signal (Coding)Gemini 2.5 Pro
N/A
81%
Claude 3 OpusAgentic Tooling SignalGemini 2.5 Pro
N/A
89%
Claude 3 OpusMultimodal SignalGemini 2.5 Pro
N/A
89%
Capabilities Matrix
Feature highlights for architecture and production fit.
Claude 3 Opus Strengths
- Live capability metadata is currently unavailable for this model.
- Re-check after the next OpenRouter catalog refresh.
- Use provider docs for exact benchmark claims.
Gemini 2.5 Pro Strengths
- Supports image inputs for multimodal analysis workflows.
- Supports audio and speech scenarios with native modality support.
- Strong tool-calling and structured response support.
API Implementation
Quick start snippets for each provider style.
Unknown (Python)
# Model metadata unavailable # See provider docs for API usage.
Google (Python)
from google import genai client = genai.Client(api_key="YOUR_API_KEY") response = client.models.generate_content( model="google/gemini-2.5-pro", contents="Hello" ) print(response.text)
Choose Claude 3 Opus when...
- Use Claude 3 Opus when this provider is required by policy constraints.
- Validate performance with your own evaluation set before production rollout.
- Confirm final cost in the provider dashboard for your deployment region.
Choose Gemini 2.5 Pro when...
- You need low-latency voice and speech workflows with Gemini 2.5 Pro.
- Your application includes visual reasoning and image understanding tasks.
- You process large documents or code repositories in a single prompt.
Frequently Asked Questions
Practical checks before selecting a production model.
Is Claude 3 Opus better than Gemini 2.5 Pro?
It depends on the workload. Claude 3 Opus and Gemini 2.5 Pro differ in pricing, context window, and capability mix — see the side-by-side table above for the breakdown.
What's the price difference between Claude 3 Opus and Gemini 2.5 Pro?
Claude 3 Opus: N/A per 1M input tokens. Gemini 2.5 Pro: $1.25 per 1M input tokens. Output token pricing typically runs 2-5x higher.
Which model is better for coding?
Coding preference depends on your stack and tool-calling needs. Compare the coding signal row, test with your repository tasks, and validate latency in your target region.
Which model is cheaper at scale?
Input and output token pricing can diverge by workload profile. Use the estimator with your monthly request count and token mix to get a realistic cost difference.
Are these official benchmark numbers?
Pricing is live from OpenRouter. Benchmark rows are ModelsAtlas metadata-based signals and should be treated as directional guidance, not official leaderboard scores.
Related Comparisons
Explore adjacent model matchups.