Model comparison
Celeris-1 vs Claude Sonnet 4.5 Thinking
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Evidence parity. Celeris-1 and Claude Sonnet 4.5 Thinking share 0 comparable benchmark results. 0 of 8 categories are comparable. 1 result is unique to Celeris-1; 2 to Claude Sonnet 4.5 Thinking.
Updated July 24, 2026- Shared results
- 0
- Celeris-1 only
- 1
- Claude Sonnet 4.5 Thinking only
- 2
- Comparable categories
- 0 / 8
Benchmark data for Celeris-1 and Claude Sonnet 4.5 Thinking is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Claude Sonnet 4.5 Thinking has the larger context window at 200K, compared with 8K for Celeris-1.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Celeris-1 | Claude Sonnet 4.5 Thinking | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Celeris-1$2 input / $6 output | Claude Sonnet 4.5 ThinkingNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Celeris-1Not available | Claude Sonnet 4.5 ThinkingNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Celeris-1Not available | Claude Sonnet 4.5 ThinkingNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Celeris-18K | Claude Sonnet 4.5 Thinking200K | Claude Sonnet 4.5 Thinking lists the larger context window. |
Benchmark Deep Dive
Coding1 benchmarks
| Benchmark | Celeris-1 | Claude Sonnet 4.5 Thinking | Result |
|---|---|---|---|
| Vibe Code BenchSource | — | 22.62% | Not comparable |
Knowledge1 benchmarks
| Benchmark | Celeris-1 | Claude Sonnet 4.5 Thinking | Result |
|---|---|---|---|
| MMLU-ProSource | 75.9% | — | Not comparable |
Multimodal1 benchmarks
| Benchmark | Celeris-1 | Claude Sonnet 4.5 Thinking | Result |
|---|---|---|---|
| Design Arena WebsiteSource | — | 1219 | Not comparable |
Frequently Asked Questions (3)
Can I compare Celeris-1 and Claude Sonnet 4.5 Thinking on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Celeris-1 and Claude Sonnet 4.5 Thinking today?
Celeris-1: $2.00 input / $6.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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