Claude Fable 5 vs Gemini 2.5 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Fable 5 by Anthropic wins on 6 of 11 benchmarks against Gemini 2.5 Pro by Google, which leads on 5. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Claude Fable 5 scores 49.7 on AA Intelligence Index compared to Gemini 2.5 Pro's 16.7.
Coding: In coding, Claude Fable 5 scores 95.0% on SWE-bench Verified compared to Gemini 2.5 Pro's 63.8%, while Claude Fable 5 scores 76.5 on AA Coding Index compared to Gemini 2.5 Pro's 33.3.
Reasoning: In reasoning, Claude Fable 5 scores 92.6% on GPQA Diamond compared to Gemini 2.5 Pro's 84.0%, while Claude Fable 5 scores 51 on AA Agentic Index compared to Gemini 2.5 Pro's 3.5.
Context: In context, Gemini 2.5 Pro scores 1.0M on Context Length compared to Claude Fable 5's 1.0M.
Pricing Comparison
Claude Fable 5 costs $10.0/1M input tokens and $50.0/1M output tokens, while Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output. Gemini 2.5 Pro is the more affordable option for API usage.
Speed Comparison
Claude Fable 5 generates output at 60 tok/s compared to Gemini 2.5 Pro's 55 tok/s, and the time to first token is 81680 ms for Claude Fable 5 versus 500 ms for Gemini 2.5 Pro. Claude Fable 5 delivers faster throughput.
Verdict
For developers prioritizing coding and speed, Claude Fable 5 has the edge. For those who value affordability, Gemini 2.5 Pro is the stronger choice.
View Individual Model Pages
Claude Fable 5 vs Gemini 2.5 Pro — FAQ
Which is better, Claude Fable 5 or Gemini 2.5 Pro?
Claude Fable 5 wins on more benchmarks overall (6 vs 5). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Fable 5 compare to Gemini 2.5 Pro for coding?
Claude Fable 5 is better for coding, scoring 95.0% on SWE-bench Verified compared to 63.8%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Fable 5 cheaper than Gemini 2.5 Pro?
Yes, Gemini 2.5 Pro is cheaper. Claude Fable 5 costs $10.0/1M input and $50.0/1M output tokens. Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output tokens.
Which is faster, Claude Fable 5 or Gemini 2.5 Pro?
Claude Fable 5 is faster, generating output at 60 tok/s compared to 55 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Fable 5 vs Gemini 2.5 Pro comparison cover?
This comparison covers 11 benchmarks including GPQA Diamond, SWE-bench Verified, Output Speed, Time to First Token, Input Cost, Output Cost, Context Length, AA Intelligence Index, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.