Claude Haiku 4.5 vs GPT-4o (Omni)
Compare Claude Haiku 4.5 by Anthropic against GPT-4o (Omni) by OpenAI, in 5 community votes, claude haiku 4.5 wins 67% of head-to-head duels, context windows of 200K vs 128K, tested across 54 shared challenges. Updated June 2026.
Which is better, Claude Haiku 4.5 or GPT-4o (Omni)?
Claude Haiku 4.5 is the better choice overall, winning 67% of 5 blind community votes on Rival. Claude Haiku 4.5 costs $1/M input tokens vs $2.5/M for GPT-4o (Omni). Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Haiku 4.5 and GPT-4o (Omni)
Claude Haiku 4.5 is made by anthropic while GPT-4o (Omni) is from openai. Claude Haiku 4.5 has a 200K token context window compared to GPT-4o (Omni)'s 128K. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $2.5/M for GPT-4o (Omni). In community voting, In 5 community votes, Claude Haiku 4.5 wins 67% of head-to-head duels.
In 5 community votes, Claude Haiku 4.5 wins 67% of head-to-head duels. Claude Haiku 4.5 has the edge overall, but performance varies by task type. Based on blind community voting from the Rival open dataset of 5+ human preference judgments for this pair.
Pick Claude Haiku 4.5. In 5 blind votes, Claude Haiku 4.5 wins 67% of the time. That's not luck.
Cost per 1M tokens
Claude Haiku 4.5 is cheaper on both — 2.5× input, 2.0× output
Style Comparison
Claude Haiku 4.5 uses 8.1x more emoji
