Also in Text:General LLMReasoningMath+2C
Long context · Oct 14, 2026
Who is SOTA in Long context?
Gemini 4 Argon & Claude Opus 5.5

Usable long context, not a needle-in-a-haystack demo. Fiction.liveBench at 120k tokens plus longer-query preference. As of Oct 14, 2026, Gemini 4 Argon & Claude Opus 5.5 are tied for state of the art in Long context (since Oct 2, 2026; sources LMArena Text…

OverallOpen weights≤ 32BBest per $
Standings · overall

The board

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#ModelStateConfidenceWhy
1GGemini 4 Argon
Google DeepMind		Co-SOTA · Long contextmediumGemini 4 Argon is tied for SOTA in Long context with Claude Opus 5.5, within the margin of error, since 2026-10-02.
1AClaude Opus 5.5
Anthropic		Co-SOTA · Long contextmediumClaude Opus 5.5 is tied for SOTA in Long context with Gemini 4 Argon, within the margin of error, since 2026-10-02.
2AClaude Opus 4.6
Anthropic		Near-SOTA · Long contextmediumClose in Long context: rank #2, 0.7 percentile points behind the leader.
3AClaude Fable 5
Anthropic		Near-SOTA · Long contextmediumClose in Long context: rank #3, 2.0 percentile points behind the leader.
4AClaude Opus 4.7
Anthropic		Near-SOTA · Long contextmediumClose in Long context: rank #4, 2.7 percentile points behind the leader.
5GGemini 3.8 Flash
Google DeepMind		Near-SOTA · Long contextmediumClose in Long context: rank #5, 3.4 percentile points behind the leader.
6AClaude Fable 5.1
Anthropic		Was SOTA · Long contextmediumWas SOTA in Long context from 2026-09-11 to 2026-10-02. Currently ranked #6.
7MMuse Wonder
Meta		#7 in Long contextmediumRanked #7 in Long context.
8KKimi K3
Moonshot AI		Was SOTA · Long contextmediumWas SOTA in Long context from 2026-07-27 to 2026-08-11. Currently ranked #8.
9AClaude Opus 5
Anthropic		Was SOTA · Long contextmediumWas SOTA in Long context from 2026-08-11 to 2026-08-19. Currently ranked #9.
10AClaude Opus 4.8
Anthropic		Was SOTA · Long contextmediumWas SOTA in Long context from 2026-06-16 to 2026-07-12. Currently ranked #10.
11AClaude Sonnet 5.5
Anthropic		#11 in Long contextmediumRanked #11 in Long context.
12GGemini 3.1 Pro Preview
Google DeepMind		Was SOTA · Long contextmediumWas SOTA in Long context from 2026-04-28 to 2026-04-30. Currently ranked #12.
13OGPT-5.6 Sol
OpenAI		#13 in Long contextmediumRanked #13 in Long context.
14GGemini 3.7 Flash
Google DeepMind		#14 in Long contextmediumRanked #14 in Long context.
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Badges for the leaders

Gemini 4 Argon

CO-SOTA · Long context · Oct 2026

[![CO-SOTA · Long context · Oct 2026](https://isitsota.com/badge/gemini-4-argon/long-context.svg)](https://isitsota.com/m/gemini-4-argon)

<a href="https://isitsota.com/m/gemini-4-argon"><img alt="CO-SOTA · Long context · Oct 2026" src="https://isitsota.com/badge/gemini-4-argon/long-context.svg" height="28"></a>

Claude Opus 5.5

CO-SOTA · Long context · Oct 2026

[![CO-SOTA · Long context · Oct 2026](https://isitsota.com/badge/claude-opus-5-5/long-context.svg)](https://isitsota.com/m/claude-opus-5-5)

<a href="https://isitsota.com/m/claude-opus-5-5"><img alt="CO-SOTA · Long context · Oct 2026" src="https://isitsota.com/badge/claude-opus-5-5/long-context.svg" height="28"></a>

Related

Best page and recent changes

Best AI model for long context

Evidence recipe

What can move this crown

Who is SOTA in Long context?

As of Oct 14, 2026, Gemini 4 Argon & Claude Opus 5.5 are tied for state of the art in Long context (since Oct 2, 2026; sources LMArena Text (style-controlled, longer query); methodology v1.0).

Since when is the Long context crown current?

The current crown in Long context has held since Oct 2, 2026.