Anthropic: what changed — Artificialshttps://artificials.net/makers/anthropicWhat changed for Anthropic’s models: new releases, changes to listed prices, top spots taken or lost on tests and entries on the capability index.enGemini 4 Argon High took the top spot on Arena text at 1525, from Claude Opus 5.5https://artificials.net/makers/anthropicleader:2026-10-01:Gemini 4 Argon High:arena-textThu, 01 Oct 2026 00:00:00 GMTGemini 4 Argon High took the top spot on Arena coding at 1559, from Claude Opus 4.6, within the published marginhttps://artificials.net/makers/anthropicleader:2026-10-01:Gemini 4 Argon High:arena-codingThu, 01 Oct 2026 00:00:00 GMTGemini 4 Argon High took the top spot on Arena math at 1528, from Claude Fable 5, within the published marginhttps://artificials.net/makers/anthropicleader:2026-10-01:Gemini 4 Argon High:arena-mathThu, 01 Oct 2026 00:00:00 GMTGemini 4 Argon High took the top spot on Arena hard prompts at 1550, from Claude Opus 5.5https://artificials.net/makers/anthropicleader:2026-10-01:Gemini 4 Argon High:arena-hard-promptsThu, 01 Oct 2026 00:00:00 GMTGemini 4 Argon High took the top spot on Arena creative writing at 1522, from Claude Opus 5.5, within the published marginhttps://artificials.net/makers/anthropicleader:2026-10-01:Gemini 4 Argon High:arena-creative-writingThu, 01 Oct 2026 00:00:00 GMTGemini 4 Argon High took the top spot on Arena instruction following at 1529, from Claude Opus 5.5https://artificials.net/makers/anthropicleader:2026-10-01:Gemini 4 Argon High:arena-instruction-followingThu, 01 Oct 2026 00:00:00 GMTClaude Opus 5.5 joined the capability index at 167.3https://artificials.net/models/claude-opus-5-5index:2026-09-30:claude-opus-5-5Wed, 30 Sep 2026 00:00:00 GMTClaude Sonnet 5.5 joined the capability index at 165.2https://artificials.net/models/claude-sonnet-5-5index:2026-09-30:claude-sonnet-5-5Wed, 30 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on CursorBench at 57.8%, from Claude Fable 5.1https://artificials.net/models/claude-opus-5-5leader:2026-09-29:claude-opus-5-5:cursorbenchTue, 29 Sep 2026 00:00:00 GMTClaude Sonnet 5.5 was released by Anthropichttps://artificials.net/models/claude-sonnet-5-5release:2026-09-28:claude-sonnet-5-5Mon, 28 Sep 2026 00:00:00 GMTClaude Sonnet 5.5 took the top spot on LiveBench coding at 91.4%, from Claude Opus 5.5https://artificials.net/models/claude-sonnet-5-5leader:2026-09-28:claude-sonnet-5-5:codingMon, 28 Sep 2026 00:00:00 GMTClaude Opus 4.6 took the top spot on Arena coding at 1551, from Claude Fable 5, within the published marginhttps://artificials.net/models/claude-opus-4-6leader:2026-09-26:claude-opus-4-6:arena-codingSat, 26 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on Arena text at 1509, from Claude Fable 5, within the published marginhttps://artificials.net/models/claude-opus-5-5leader:2026-09-26:claude-opus-5-5:arena-textSat, 26 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on Arena hard prompts at 1541, from Claude Opus 4.6, within the published marginhttps://artificials.net/models/claude-opus-5-5leader:2026-09-26:claude-opus-5-5:arena-hard-promptsSat, 26 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on Arena creative writing at 1521, from Claude Fable 5, within the published marginhttps://artificials.net/models/claude-opus-5-5leader:2026-09-26:claude-opus-5-5:arena-creative-writingSat, 26 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on Arena instruction following at 1516, from Claude Opus 4.6, within the published marginhttps://artificials.net/models/claude-opus-5-5leader:2026-09-26:claude-opus-5-5:arena-instruction-followingSat, 26 Sep 2026 00:00:00 GMTClaude Opus 5.5 was released by Anthropichttps://artificials.net/models/claude-opus-5-5release:2026-09-22:claude-opus-5-5Tue, 22 Sep 2026 00:00:00 GMTClaude Opus 5.5 Fast was released by Anthropichttps://artificials.net/models/claude-opus-5-5-fastrelease:2026-09-22:claude-opus-5-5-fastTue, 22 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on LiveBench coding at 89.3%, from Claude Fable 5.1https://artificials.net/models/claude-opus-5-5leader:2026-09-22:claude-opus-5-5:codingTue, 22 Sep 2026 00:00:00 GMTClaude Opus 5.5 took the top spot on LiveBench mathematics at 97.1%, from Claude Fable 5.1https://artificials.net/models/claude-opus-5-5leader:2026-09-22:claude-opus-5-5:mathTue, 22 Sep 2026 00:00:00 GMT