LM Arena News

Available in Claude Code at launch

Will Sonnet 5 be available on the free Claude tier at launch?

Outperforms Opus 4.5 in WebDev on LMArena

400k+ token context window

50% if significantly better than Sonnet 4.5, YES if significantly better than Opus 4.5 (President's judgement)

Will Claude Sonnet 5 debut in the LM Arena Top 3 overall within 7 days of release?

1M+ token context window

Releases Feb 5th

Will Sonnet 5 reach #1 overall on LM Arena at any point within 14 days?

"agent swarm" or other more sophisticated multi agent scheme released/announced with launch.

Any image generation tool included with the release (nano banana type thing, not gif's)

Releases Feb 6th (PT)

Sonnet 4.x will be released, not Sonnet 5

1.5M+ token context window

Will Sonnet 5 be #1 overall-no-style-control on LM Arena when first added to the leaderboard

Releases Feb 4th

releases today before 1pm ET (feb 3rd)

Releases today at all (feb 3)

Releases before 2pm EST

Releases before 3pm est

Releases before 4pm EST

Reseases before 1pm Feb 4th

Reseases before 2pm Feb 4th

YES

NO

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