Claude Sonnet 5.5 vs GPT-6.1 Sol

Compare up to 4 models side by side.

Capability
167↓ 1%168↑
1473↑1446↓ 2%
Priceper 1M tokens
Input$2.20↑ ×1.2$1.80–$3.60list $2.00-10%↓
Output$11.00↑ ×1.2$9.00–$13.50list $10.00-10%↓
Cache read$0.11↑ ×1.2$0.09–$0.18list $0.10-10%↓
Web searchper request$0.011↑ ×1.2$0.009–$0.0126list $0.01-10%↓
Limits and modalities
Context1M↓ 5%1.1M↑
Max output128K128K
ModalitiesInputTextImagePDFOutputTextInputTextImageOutputText
Availability
ProvidersAnthropic, Anthropic (AWS)Azure AI Foundry, OpenAI
30-day uptime——
Measured, last 30 days
Avg latency——
Effective price——
Cache hit rate——
About
Released2026-09-282026-09-29
Knowledge cutoff2026-062026-04-30

Capability scores are from Epoch AI’s Epoch Capabilities Index (CC BY 4.0, as of 2026-11-02), which combines dozens of benchmarks with GPT-5 set at 150. epoch.ai/eci

Human preference ratings are from the LMArena Text Arena (CC BY 4.0, as of 2026-10-28): Elo ratings from blind votes, on a different scale from capability scores. lmarena.ai/leaderboard/text