# Apodex 1.1 vs Spark-X2.6-4B

> Side-by-side benchmark comparison for Apodex 1.1 and Spark-X2.6-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/apodex-1-1-vs-spark-x2-6-4b
- Last updated: October 20, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Apodex 1.1 and Spark-X2.6-4B share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Spark-X2.6-4B has the lower published output-token price.
- Spark-X2.6-4B has the larger published context window at 1M.

## Model Snapshot

| Property | Apodex 1.1 | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | Apodex | SparkLLM |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | N/A | 1M |
| Independent public score (not head-to-head) | 50.2 | 40.14 |
| Benchmarks Covered | 10 | 20 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: 46.9 (Estimated · #56/131)
- Spark-X2.6-4B public-lane score: 33 (Estimated · #89/131)

| Benchmark | Apodex 1.1 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 70.8% | Coming soon | Coming soon |
| HLE w/ tools | 56.1% | 36.9% | Apodex 1.1 |
| APEX-Agents | 38.5% | Coming soon | Coming soon |
| DeepSearchQA | 92.4% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 71.8% | Coming soon |
| τ²-bench results | Coming soon | 86.9% | Coming soon |
| MCP Atlas | Coming soon | 62.4% | Coming soon |
| BrowseComp | Coming soon | 53.1% | Coming soon |
| τ³-bench results | Coming soon | 34.7% | Coming soon |
| Claw-Eval | Coming soon | 69.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: 42.1 (Estimated · #62/152)
- Spark-X2.6-4B public-lane score: 30.6 (Estimated · #95/152)

| Benchmark | Apodex 1.1 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 70.8% | Coming soon | Coming soon |
| SWE-bench Verified | 77.7% | 62.8% | Apodex 1.1 |
| SWE-bench Pro | Coming soon | 54.3% | Coming soon |
| SWE Multilingual | Coming soon | 64.7% | Coming soon |
| SciCode | Coming soon | 36.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: 79.5 (Unranked · 2 rankable rows)
- Spark-X2.6-4B public-lane score: 48.8 (Unranked · 2 rankable rows)

| Benchmark | Apodex 1.1 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 53.3% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: 81.1 (Unranked · 1 rankable row)
- Spark-X2.6-4B public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: 55.6 (Supported · #57/187)
- Spark-X2.6-4B public-lane score: 43 (Estimated · #109/187)

| Benchmark | Apodex 1.1 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| HLE | 56.1% | Coming soon | Coming soon |
| FrontierScience Research | 63.3% | Coming soon | Coming soon |
| BioMysteryBench (human-difficult) | 35.3% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 77.1% | Coming soon |
| HLE w/o tools | Coming soon | 17.9% | Coming soon |
| GPQA | Coming soon | 69.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 78.2 (#62/149)

| Benchmark | Apodex 1.1 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 93.6% | Coming soon |
| IFBench | Coming soon | 75.8% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Apodex 1.1 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 76.4 (Unranked · 3 rankable rows)

| Benchmark | Apodex 1.1 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IMO 2026 | 31/42 | Coming soon | Coming soon |
| AIME26 | Coming soon | 91.2% | Coming soon |
| HMMT Feb 2026 | Coming soon | 81.3% | Coming soon |
| IMOAnswerBench | Coming soon | 75.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Apodex 1.1 and Spark-X2.6-4B?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Apodex 1.1 vs Apodex 1.1 Mini](/compare/apodex-1-1-vs-apodex-1-1-mini)
- [Spark-X2.6-4B vs Apodex 1.1 Mini](/compare/apodex-1-1-mini-vs-spark-x2-6-4b)
- [Apodex 1.1 vs Claude Opus 5.5](/compare/apodex-1-1-vs-claude-opus-5-5)
- [Spark-X2.6-4B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-spark-x2-6-4b)

## Explore More

- [Apodex 1.1 profile](/models/apodex-1-1)
- [Spark-X2.6-4B profile](/models/spark-x2-6-4b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)