Most agentic Sonnet yet
Tops Terminal-Bench 2.1 at 80.4%, ahead of Opus 4.8 (74.6%) and Sonnet 4.6 (67.0%), with big gains on tool use.
Anthropic's Claude Sonnet 5 arrived on June 30, 2026 as its most agentic Sonnet yet, landing close to Claude Opus 4.8 quality for far less. It ships with a 1 million token context window and vision, and tops Terminal-Bench 2.1 at 80.4 percent, ahead of Opus 4.8. On avots.ai you run it pay per use, no subscription, and the same balance also covers GPT-5.6, Gemini, Kimi K3 and 40+ image, video and music models.
| Claude Sonnet 5 | Claude Opus 4.8 | Claude Sonnet 4.6 | |
|---|---|---|---|
| Best for | agentic coding at Sonnet price | absolute frontier quality | previous Sonnet default |
| Terminal-Bench 2.1 | 80.4% | 74.6% | 67.0% |
| Context window | 1M tokens | 1M tokens | 1M tokens |
| Vision | yes | yes | yes |
| On avots.ai | pay per use | pay per use | pay per use |
Sonnet 5 is the sweet spot: near Opus 4.8 quality on agentic work, at a fraction of the price. Pick it for coding agents and long tool runs, reach for Opus 4.8 on the very hardest problems, and switch freely because one balance covers both.
Tops Terminal-Bench 2.1 at 80.4%, ahead of Opus 4.8 (74.6%) and Sonnet 4.6 (67.0%), with big gains on tool use.
81.2% on OSWorld and 63.2% on the harder SWE-bench Pro, so agents drive real desktops and repos.
84.7% on BrowseComp 25, running long research with context compaction that kicks in past 200k tokens.
Reads about a million tokens in one go and understands images, close to Opus 4.8 quality for far less.
Sign up on app.avots.ai with email, Google or Telegram. Takes a minute.
1,000 tokens cost 0.99 EUR. No plan to choose, no renewal, the balance sits there until you use it.
Choose Sonnet 5 in the model picker, or let Agent Avots route for you. Every reply shows its token cost.
app.avots.ai on desktop and mobile, no install needed.
Claude Sonnet 5 in @AvotsAIbot, same balance, from any phone.
Use it inside Claude Desktop, Cursor or Cline via the MCP server.
The OpenAI compatible API takes your existing client, one key for every model.
1,000 tokens cost 0.99 EUR and a Sonnet 5 reply costs a handful of them. The same balance also unlocks Claude Opus 4.8, GPT-5.6, Gemini, Kimi K3, Veo video and Nano Banana images.
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