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GPT-5.4 vs anthropic--claude-3.5-sonnet

Both have similar output pricing, while GPT-5.4 offers a larger context window. Choose GPT-5.4 or anthropic--claude-3.5-sonnet based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.4anthropic--claude-3.5-sonnet
ProviderOpenAISAP AI Core
Input / 1M tokens$2.50$3.00
Output / 1M tokens$15.00$15.00
Context window1.1M200K
Parameters——
Open weightsNoNo
ReleasedMar 2026Oct 2024
LiveBench score80.9—
LMArena (Chatbot Arena) Elo score1469—
LMArena WebDev Elo score1463—
LMArena Vision Elo score1303—
GPQA Diamond score93.3—
FrontierMath score47.6—
Epoch Capabilities Index score157—

FAQ

Is GPT-5.4 or anthropic--claude-3.5-sonnet cheaper?

GPT-5.4 and anthropic--claude-3.5-sonnet have comparable output pricing.

Which has the larger context window, GPT-5.4 or anthropic--claude-3.5-sonnet?

GPT-5.4 has the larger context window (1.1M tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.