Claude 5.5 SonnetvsClaude Opus 5.5

Claude 5.5 Sonnet leads the overall Podium Score by 10.8 points (94.8 vs 84.0).Category wins: Claude 5.5 Sonnet 4 — 0 Claude Opus 5.5.Claude 5.5 Sonnet is the cheaper pick ($15/M vs $25/M per 1M output tokens). Claude 5.5 Sonnet is faster (94 t/s vs 68 t/s).

Open in Compare Tool →View Claude 5.5 SonnetView Claude Opus 5.5
Claude 5.5 SonnetDrag slider or hover to compareClaude Opus 5.5
Claude Opus 5.5
84.0
Coding: 85.0 · Speed: 68 t/s
Output Price: $25/M
Claude 5.5 Sonnet
94.8
Coding: 91.5 · Speed: 94 t/s
Output Price: $15/M
Quick VerdictAggregated 2026 Benchmark Analysis

Claude 5.5 Sonnet is rated higher overall with a Podium Score of 94.8 (vs 84.0 for Claude Opus 5.5). In head-to-head domain evaluations, Claude 5.5 Sonnet outperforms in 4 of 7 benchmark categories.

Coding & Engineering
Claude 5.5 Sonnet (91.5)
Inference Speed
Claude 5.5 Sonnet (94 t/s)
Cost Efficiency
Claude 5.5 Sonnet ($15/M)
API Price / 1M (in · out)
Claude 5.5 Sonnet $3/M · $15/M — Claude Opus 5.5 $5/M · $25/M

Choose Claude 5.5 Sonnet for vision and multimodal apps, and Claude Opus 5.5 for general-purpose workloads.

MetricClaude 5.5 SonnetClaude Opus 5.5
Podium Score94.8 ▲84.0
Arena Elo1520—
Intelligence Index95.0—
Coding91.5 ▲85.0
Math94.2—
Reasoning95.0 ▲86.0
Agentic89.4—
Knowledge88.0 ▲45.0
Multimodal96.0 ▲85.0
Long-context98.0—
Output speed94 t/s ▲68 t/s
Output price$15/M ▲$25/M
Context window1000K1000K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude 5.5 Sonnet vs Claude Mythos · Claude 5.5 Sonnet vs Kimi K3.1 Pro · Claude 5.5 Sonnet vs Eleven Multilingual v3 · Claude 5.5 Sonnet vs FLUX.2 Pro
0 / 4
Compare Now →