Model Comparison

Claude Opus 5 (Adaptive Reasoning, Max Effort)
vs. Gemini 3.1 Pro Preview

Comparing 2 AI models · 7 benchmarks · Anthropic, Google

Recommended Pick

Google logoGemini 3.1 Pro Preview10 metric wins

Strongest on: Value, Input price, Output price

Best Value

Google logo

Gemini 3.1 Pro Preview

100.0 value score

62.9 reasoning / $4.50/1M

Lowest Price

Google logo

Gemini 3.1 Pro Preview

$2.00/1M input price

Best Reasoning

Anthropic logo

Claude Opus 5 (Adaptive Reasoning, Max Effort)

70.4 reasoning score

Blends available reasoning benchmarks

Best for Coding

Anthropic logo

Claude Opus 5 (Adaptive Reasoning, Max Effort)

78.0 coding index

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Best value

Gemini 3.1 Pro Preview has the strongest quality-to-price mix at 100.0 out of 100 value points.

Price gap

Gemini 3.1 Pro Preview is 2.5x cheaper on input tokens than Claude Opus 5 (Adaptive Reasoning, Max Effort).

Speed gap

Gemini 3.1 Pro Preview generates about 2.6x as many tokens per second as Claude Opus 5 (Adaptive Reasoning, Max Effort).

Reasoning gap

Claude Opus 5 (Adaptive Reasoning, Max Effort) leads Gemini 3.1 Pro Preview by 7.5 points on reasoning.

Coding gap

Claude Opus 5 (Adaptive Reasoning, Max Effort) leads Gemini 3.1 Pro Preview by 9.2 points on coding.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

Anthropic logo

Claude Opus 5 (Adaptive Reasoning, Max Effort)

Anthropic

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
Google logo

Gemini 3.1 Pro Preview

Google

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

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Full Comparison

Metric
Anthropic logoClaude Opus 5 (Adaptive Reasoning, Max Effort)
Anthropic
Top Pick
Google logoGemini 3.1 Pro Preview
Google
Pricing per 1M tokens
Input Cost$5.00/1M$2.00/1M
Output Cost$25.00/1M$12.00/1M
Blended (3:1)$10.00/1M$4.50/1M
Specifications
OrganizationAnthropicGoogle
Release DateJul 24, 2026Feb 19, 2026
Performance & Speed
Throughput49.1 tok/s126.4 tok/s
TTFT32421ms25075ms
Latency32421ms25075ms
Composite Indices
Value Score50.3100.0
Reasoning Score70.462.9
Intelligence63.147.7
Coding78.068.8
Standard Benchmarks
GPQA93.2%94.1%
HLE54.9%47.0%
SciCode55.7%58.9%
LCR75.7%79.0%
IFBench77.1%
TAU-bench v295.6%
TerminalBench Hard53.8%

Key Takeaways

Gemini 3.1 Pro Preview offers the best value at $2.00/1M,making it ideal for high-volume applications and cost-conscious projects.

Claude Opus 5 (Adaptive Reasoning, Max Effort) has the strongest reasoning profile with a 70.4 reasoning score,combining the available reasoning-heavy benchmarks.

Claude Opus 5 (Adaptive Reasoning, Max Effort) reaches a 78.0 coding index,making it the top choice for software development and code generation tasks.

All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.

When to Choose Each Model

Anthropic logo

Claude Opus 5 (Adaptive Reasoning, Max Effort)

  • Complex reasoning tasks
  • Research & analysis
  • Code generation
  • Software development
Google logo

Gemini 3.1 Pro Preview

  • Cost-sensitive applications
  • High-volume processing