AI digest
The useful part of the release cycle, when it matters
A short editorial update for people who need to know what changed without refreshing every model page. New launches, open-weight notes, benchmark context, and the decision that follows.
Signal as of October 1, 2026
New does not mean ready to switch.
The digest tracks the release, then points you to the test that would prove whether it belongs in your workflow.
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Current window
3 verified releases in the last 28 days
Showing 3 here; the live tracker is the source of truth for dates, prices, context, and open-weight status.
Gemini 4 Argon (restricted preview)
Google’s announced frontier model, initially restricted to trusted cyber defenders in the Fairwind program while broader safeguards and access are prepared.
OpenAI
GPT-6.1 Sol
OpenAI’s newer Sol model for coding, computer use and professional work, with the same base token price as GPT-6 Sol and lower cached-input pricing.
Anthropic
Claude Sonnet 5.5
Anthropic’s newer Sonnet model for everyday coding and knowledge work at the same $2/$10 token rates as Sonnet 5.
Popular this week
Editorial snapshot, not only the 28-day release window
Six catalog items worth checking now. Snapshot as of October 1, 2026 — research, not traffic analytics.
Model
Claude Opus 5.5
Anthropic's recommended starting point for many workloads at $4/$20 per MTok. The 26 September AA v4.3.2 and CursorBench 4.0 figures are dated, source-specific snapshots, not a current universal ranking.
Model
GPT-6.1 Sol
OpenAI released GPT-6.1 Sol on 2026-09-29 at $2/$10 per MTok, with $0.10 cached input. Its 1.05M context and 128K output are API model limits; ChatGPT availability is a separate Work/Codex rollout.
Model
Claude Sonnet 5.5
Released 2026-09-28 at Sonnet 5's $2/$10 base token rates. Anthropic reports up to 30% lower cost per task for most work; that is a vendor result, not a guaranteed workload saving.
Model
Gemini 4 Argon
Announced 2026-09-30 for restricted Fairwind access. No general API ID, input-context limit, or currently purchasable price is verified, so this is a release-watch item rather than a buyable shortlist pick.
Model
Grok 4.7
Standard Grok 4.7 is documented on the public API at $2/$6 per MTok. CursorBench 4.0’s 46.3% Extra High row is harness-specific. Copilot rollout is gradual on eligible tiers; the separate Fast variant is restricted to Cursor and Grok Build.
Model
DeepSeek V4.1-Flash
MIT checkpoint, 1M context and first-party peak/off-peak API rates. DeepSeek says legacy V4-Flash IDs are temporarily rerouted; verify exact host, model ID and reseller behavior separately.
Read next
Launch context, not launch noise
Use these guides to decide what deserves a controlled test.
Gemini 4 Argon: restricted preview, broader API access pending
Google initially restricts Argon to trusted cyber defenders in Fairwind while preparing broader safeguards and access.
OpenAI
GPT-6.1 Sol: the newer Sol release at the same base price
GPT-6.1 Sol is the newer Sol release at the same $2/$10 Standard short-context rates, with cached input at $0.10 per million tokens.
Anthropic
Claude Sonnet 5.5: everyday coding with breaking API changes
Sonnet 5.5 is released at Sonnet 5's $2/$10 token price, with 1M context and 128K standard output.
Anthropic
Claude Opus 5.5: Anthropic's recommended starting point for many workloads at a lower price than Opus 5
Claude Opus 5.5 replaces Opus 5 as Anthropic's recommended starting point and costs less per token ($4/$20 vs $5/$25). Published benchmark rows are dated, effort- and harness-specific snapshots, not a universal model ranking.