Claude Sonnet 4 vs Gemini 3.8 Flash
As of Oct 15, 2026, Claude Sonnet 4 leads Gemini 3.8 Flash in 0 of 6 shared categories.
Claude Sonnet 4
#35 Best current rank: #35 in Math, as of Oct 15, 2026.
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | Claude Sonnet 4 | Gemini 3.8 Flash |
|---|---|---|
| General LLM | #163 · #163 in General LLM Margin 86.70212765957447 LMArena leaderboard dataset · Oct 13, 2026 | #7 · Near-SOTA · General LLM Margin 3.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #149 · #149 in Reasoning Margin 79.7872340425532 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Near-SOTA · Reasoning Margin 3.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #35 · #35 in Math Margin 77.77777777777777 Epoch AI benchmarking hub · May 22, 2025 | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 |
| Science | #97 · #97 in Science Margin — Epoch AI benchmarking hub · May 22, 2025 | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Coding Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #15 · #15 in Coding › Agentic Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | — | #29 · #29 in Coding › Web dev Margin 22.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #123 · #123 in Long context Margin 65.42553191489361 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · Long context Margin 2.659574468085111 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 | — | #19 · #19 in Factuality Margin 11.6279069767442 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #67 · #67 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 22, 2025 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
Claude Sonnet 4: $6 per 1M blended tokens.
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
Claude Sonnet 4: closed weights.
Gemini 3.8 Flash: closed weights.
General LLM: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in General LLM at #7 against #163.
Reasoning: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Reasoning at #6 against #149.
Math: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Math at #5 against #35.
Science: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Science at #4 against #97.
Long context: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Long context at #5 against #123.
Abstraction (ARC): As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Abstraction (ARC) at #1 against #67.
Claude Sonnet 4 · Gemini 3.8 Flash
Claude Sonnet 4 or Gemini 3.8 Flash?
As of Oct 15, 2026, Claude Sonnet 4 leads Gemini 3.8 Flash in 0 of 6 shared categories.
Claude Sonnet 4 or Gemini 3.8 Flash for General LLM?
As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in General LLM at #7 against #163.
Claude Sonnet 4 or Gemini 3.8 Flash for Reasoning?
As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Reasoning at #6 against #149.
Claude Sonnet 4 or Gemini 3.8 Flash for Math?
As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Sonnet 4 in Math at #5 against #35.