Claude Opus 5.5 vs Particle-1
aka Opus 5.5 vs Particle Particle-1
- CheaperParticle-11/1 postsmedian gap ~8.2×
- FasterClaude Opus 5.51/1 postsmedian gap ~2.5×
As stated in each post, not a controlled benchmark.
Posts
1
About this matchup
Claude Opus 5.5 vs Particle-1 in real side-by-side tests: 1 post from X where both got the same prompt; 1 post reports cost or time. Judge coding ability from the actual outputs.
Opus 5.5 vs Particle-1: which is better for coding?
Which is better for coding, Opus 5.5 or Particle-1?
None of the 1 post here names one of the two as the better result, so judge the outputs above for the work you care about.
Which is cheaper, Opus 5.5 or Particle-1?
1 post states a cost for both: Particle-1 was cheaper in it (~8.2× cheaper). These are the costs the posts state for each run, not list prices.
Which is faster, Opus 5.5 or Particle-1?
1 post states a time for both: Claude Opus 5.5 was faster in it (~2.5× faster). Times are as stated in each post; tools and settings differ between posts.
Summary
Claude Opus 5.5 and Particle-1 appear together in 1 post on X: neon corridor in pi, three models incl. Particle-1 (@agentsky_dev). It is part of larger lineups with other models. In @agentsky_dev's neon corridor in pi, three models incl. Particle-1, Particle-1 was cheaper ($0.26 vs $2.12) and Claude Opus 5.5 was faster (7.9 min vs 19.7 min), as reported in the post.
What each post reports
| Post | Model | Time | Cost | Tokens | Post |
|---|---|---|---|---|---|
| Neon corridor in pi, three models incl. Particle-1@agentsky_dev | Particle-1 | 19.7 min | $0.26 | — | X post |
| Neon corridor in pi, three models incl. Particle-1@agentsky_dev | Claude Opus 5.5 | 7.9 min | $2.12 | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Quick facts
| Model | Vendor | Released | Input $/1M tokens | Output $/1M tokens | Context (tokens) | Official links |
|---|---|---|---|---|---|---|
| Claude Opus 5.5 | Anthropic | 2026-09-22 | $4 | $20 | 1,000,000 | Model docs |
| Particle-1 | Particle | 2026-10-28 | $0.25 | $1 | 1,048,576 | Model docs · Announcement post |
From the vendors’ official pages, checked 2026-10-29. Standard API list prices; each value links its source and a blank cell could not be verified. The archive’s own numbers above are what each post states.
Models
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