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Claude 3.5 Sonnet vs GPT-5.4

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

SpecClaude 3.5 SonnetGPT-5.4
ProviderDigitalOceanOpenAI
Input / 1M tokens$3.00$2.50
Output / 1M tokens$15.00$15.00
Context window200K1.1M
Parameters——
Open weightsNoNo
ReleasedJun 2024Mar 2026
SWE-bench Verified score63.4—
Aider Polyglot score51.6—
SWE-bench Multimodal score25.3—
LMArena (Chatbot Arena) Elo score12981469
LMArena Vision Elo score11251303
GPQA Diamond score55.393.3
FrontierMath score2.147.6
Epoch Capabilities Index score134157
LiveBench score—80.9
LMArena WebDev Elo score—1463

FAQ

Is Claude 3.5 Sonnet or GPT-5.4 cheaper?

Claude 3.5 Sonnet and GPT-5.4 have comparable output pricing.

Which has the larger context window, Claude 3.5 Sonnet or GPT-5.4?

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.