# Celeris-1 vs Gemini 3.5 Flash

> Side-by-side benchmark comparison for Celeris-1 and Gemini 3.5 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/celeris-1-vs-gemini-3-5-flash
- Last updated: September 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Celeris-1 and Gemini 3.5 Flash.

## Summary

- Celeris-1 and Gemini 3.5 Flash do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Celeris-1 | Gemini 3.5 Flash |
|----------|----------|----------|
| Creator | Celeris | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 1M |
| Independent public score (not head-to-head) | null | 70 |
| Benchmarks Covered | 4 | 27 |
| Pricing (input/output) | $0.20 / $0.70 | $1.50 / $9.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 50.6 (Supported · #61/151)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 76.2% | Coming soon |
| MCP Atlas | Coming soon | 83.6% | Coming soon |
| Toolathlon | Coming soon | 56.5% | Coming soon |
| OSWorld-Verified | Coming soon | 78.4% | Coming soon |
| Finance Agent v2 | Coming soon | 57.9% | Coming soon |
| Gert Labs | Coming soon | 61.85% | Coming soon |
| ResearchClawBench | Coming soon | 18.0% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 74.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 57.7 (Supported · #34/183)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 76.2% | Coming soon |
| SWE-bench Pro | Coming soon | 55.1% | Coming soon |
| Vibe Code Bench | Coming soon | 48.68% | Coming soon |
| cursorBench31 | Coming soon | 49.8% | Coming soon |
| cursorBench32 | Coming soon | 48.8% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.6% | Coming soon |
| SWE-bench (Vals) | Coming soon | 78.8% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 86.9 (#6/48)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 84.2% | Coming soon |
| MMMU-Pro | Coming soon | 83.6% | Coming soon |
| Blueprint-Bench 2 | Coming soon | 33.6% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: 47.8 (Unranked · 3 rankable rows)
- Gemini 3.5 Flash public-lane score: 60.3 (#17/22)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| DROP | 81.4% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 77.3% | Coming soon |
| MRCR 1M | Coming soon | 26.6% | Coming soon |
| ARC-AGI-2 | Coming soon | 72.1% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 68.5 (Supported · #19/181)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 75.9% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 92.7% | Coming soon |
| HLE | Coming soon | 40.2% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.7% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 89.5% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 86.9 (#34/120)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 80.8% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Celeris-1 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 55.2 (Unranked · 2 rankable rows)

| Benchmark | Celeris-1 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| GSM8K | 93.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 38.966% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.583% | Coming soon |

## FAQ

### Can I compare Celeris-1 and Gemini 3.5 Flash on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Celeris-1 vs Gemini 3.5 Flash Cyber](/compare/celeris-1-vs-gemini-3-5-flash-cyber)
- [Gemini 3.5 Flash vs Gemini 3.5 Flash Cyber](/compare/gemini-3-5-flash-vs-gemini-3-5-flash-cyber)
- [Celeris-1 vs Claude Fable 5.1](/compare/celeris-1-vs-claude-fable-5-1)
- [Gemini 3.5 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-5-flash)

## Explore More

- [Celeris-1 profile](/models/celeris-1)
- [Gemini 3.5 Flash profile](/models/gemini-3-5-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)