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Anthropic
anthropic/claude-opus-5.5-20260921
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
OpenRouter share of tokens, by day.
Anthropic: Claude Opus 5.5 holds 3.54% today, up from 0.98% at the start of the visible window.
Anthropic: Claude Opus 5.5's share plotted against days since first tracked, overlaid on other current leaders on the same axis. The question every new-model page asks: is this one going to make it?
Citable stat
As of 2026-11-10, Anthropic: Claude Opus 5.5 holds 3.5% of OpenRouter token share, up 0.62pp over 30 days. Source: OpenRouter (openrouter.ai/rankings), as of 2026-11-10. tidelines.ai
Median dollars spent on one Anthropic: Claude Opus 5.5 session, by coding agent and session length.
Token rate sets the price; session length and reasoning set the bill.
| Agent | 1 turn | 2–9 turns | 10–49 turns | 50+ turns |
|---|---|---|---|---|
| Codex | $0.064 | $0.327 | $2.36 | — |
| Kilo Code | $0.153 | $0.383 | $1.60 | $8.98 |
| Claude Code | $0.113 | $0.286 | $1.33 | $8.49 |
| Hermes Agent | $0.020 | $0.213 | $1.33 | $8.41 |
Where to run it
Per-provider pricing, context, and uptime via OpenRouter. Sorted by output price.
Anthropic: Claude Opus 5.5 is served by 9 tracked endpoints on OpenRouter. The cheapest output price is $20.00 per million tokens from Amazon Bedrock · 1000k, and the most expensive is $40.00 from Anthropic · 1000k. The largest context window offered is 1000k tokens. Prices are list rates and refresh daily.
| Provider | Input $/M | Output $/M | Context | Uptime |
|---|---|---|---|---|
| Amazon Bedrock · 1000k | $4.00 | $20.00 | 1000k | 100.00% |
| Azure · 1000k | $4.00 | $20.00 | 1000k | 100.00% |
| Google · 1000k | $4.00 | $20.00 | 1000k | 100.00% |
| Claude Platform on AWS | $4.00 | $20.00 | 1000k | 100.00% |
| Anthropic · 1000k | $4.00 | $20.00 | 1000k | 100.00% |
| Amazon Bedrock · 1000k | $4.40 | $22.00 | 1000k | 100.00% |
| Azure · 1000k | $4.40 | $22.00 | 1000k | — |
| Google · 1000k | $4.40 | $22.00 | 1000k | 100.00% |
| Anthropic · 1000k | $8.00 | $40.00 | 1000k | 100.00% |
