Claude Opus 4.5 vs Claude Opus 4.8
Claude Opus 4.5 (Anthropic) versus Claude Opus 4.8 (Anthropic): API pricing, context window, capabilities and uptime, from the same data as each model page, at the SoleAPI default channel price. Input costs 2.5 Credits / M for Claude Opus 4.5 and 2.5 Credits / M for Claude Opus 4.8. Context windows are 200K and 1M.
Specs side by side
| Item | Claude Opus 4.5claude-opus-4-5-20251101 | Claude Opus 4.8claude-opus-4-8 |
|---|---|---|
| Input (prompt) · Credits / M | 2.5≈ $0.376 | 2.5≈ $0.376 |
| Output (completion) · Credits / M | 12.5≈ $1.88 | 12.5≈ $1.88 |
| Cache read · Credits / M | 0.25 | 0.25 |
| Context window | 200K | 1M |
| Max output | 64K | 128K |
| 7-day uptime | — | — |
| Latest probe latency | — | — |
| Measured throughput | 18.5 t/s | 53.7 t/s |
| Protocols | Anthropic Messages | Anthropic Messages / OpenAI Responses |
| Sample monthly cost (10M in + 2M out) | 50≈ $7.53 | 50≈ $7.53 |
Prices are the SoleAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from SoleAPI probes; a dash means the model is not probed yet.
Capabilities
FAQ
Which has the larger context window, Claude Opus 4.5 or Claude Opus 4.8?
Claude Opus 4.5 offers 200K tokens, Claude Opus 4.8 offers 1M tokens.
Can I switch between Claude Opus 4.5 and Claude Opus 4.8 at any time?
Yes. SoleAPI calls every model with the same API key; switching is just changing the model field in the request, and billing is split per model in one console.
How do the capabilities of Claude Opus 4.5 and Claude Opus 4.8 differ?
Their capability flags are identical. Every other capability is either supported by both or by neither; see the capability table above.
More comparisons
One API key for both Claude Opus 4.5 and Claude Opus 4.8
Free credits on sign-up, pay as you go, no monthly fee.