Claude Sonnet 5 vs Gemini 3.8 Flash
As of Oct 14, 2026, Claude Sonnet 5 leads Gemini 3.8 Flash in 0 of 8 shared categories.
Claude Sonnet 5
#19 Best current rank: #19 in Coding, as of Oct 14, 2026.
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | Claude Sonnet 5 | Gemini 3.8 Flash |
|---|---|---|
| General LLM | #39 · #39 in General LLM Margin 26.530612244897952 LMArena leaderboard dataset · Oct 13, 2026 | #7 · Was SOTA · General LLM Margin 4.761904761904759 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #34 · #34 in Reasoning Margin 23.972602739726028 LMArena leaderboard dataset · Oct 13, 2026 | #6 · #6 in Reasoning Margin 4.794520547945211 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Jun 30, 2026 | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
| Coding | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | #15 · #15 in Coding Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #19 · #19 in Coding › Agentic Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | #15 · #15 in Coding › Agentic Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #38 · #38 in Coding › Web dev Margin 34.57943925233644 LMArena leaderboard dataset · Oct 13, 2026 | #27 · #27 in Coding › Web dev Margin 24.29906542056075 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #31 · #31 in Long context Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · Long context Margin 3.401360544217681 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #15 · #15 in Vision Margin 42.10526315789474 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #47 · #47 in Factuality Margin 35.82089552238806 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in Factuality Margin 13.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
Claude Sonnet 5: $4.000000000000001 per 1M blended tokens.
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
Claude Sonnet 5: closed weights.
Gemini 3.8 Flash: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in General LLM at #7 against #39.
Reasoning: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Reasoning at #6 against #34.
Science: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Science at #4 against #32.
Coding: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Coding at #15 against #19.
Coding › Agentic: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Coding › Agentic at #15 against #19.
Coding › Web dev: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Coding › Web dev at #27 against #38.
Long context: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Long context at #5 against #31.
Factuality: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Factuality at #17 against #47.
Claude Sonnet 5 · Gemini 3.8 Flash
Claude Sonnet 5 or Gemini 3.8 Flash?
As of Oct 14, 2026, Claude Sonnet 5 leads Gemini 3.8 Flash in 0 of 8 shared categories.
Claude Sonnet 5 or Gemini 3.8 Flash for General LLM?
As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in General LLM at #7 against #39.
Claude Sonnet 5 or Gemini 3.8 Flash for Reasoning?
As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Reasoning at #6 against #34.
Claude Sonnet 5 or Gemini 3.8 Flash for Science?
As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Sonnet 5 in Science at #4 against #32.