Agentic
Not comparable- Hy4 preview
- 58.2
- Estimated · #30/152
- SeedRealtime
- Not ranked
- Basis
- BenchAlign lane · 13 vs 0 public rows
- Reading
- Not comparable
Hy4 preview vs SeedRealtime
Updated September 10, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.
Decision reading
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. Use the documented cost, context, and runtime rows instead.
0 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.
Share or export
Which one for your work
Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.
No workload recommendation clears the current evidence threshold.
Use the matched evidence, workload costs, and sourced specifications below instead of treating a point score as a universal answer.
Show secondary and unsupported calls
Coding work
Code generation, repair, and software-engineering tasks
Not enough matched evidence
SeedRealtime is not ranked on the public lane for coding, so no winner is named for coding.
Confidence: limited
Agentic work
Tool use, computer use, and multi-step task completion
Not enough matched evidence
SeedRealtime is not ranked on the public lane for agentic, so no winner is named for agentic.
Confidence: limited
Long documents
Prompts that approach the documented context limit
Not enough matched evidence
A complete context comparison is not sourced.
Confidence: limited
Chat turn cost
1K fresh input + 500 output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-rates
Cache-heavy agent loop cost
200K cached + 20K fresh input + 10K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-rates
Repository review cost
50K fresh input + 3K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-rates
What is actually comparable
Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.
28 Hy4 preview only
- Shared results
- 0
- Hy4 preview only
- 28
- SeedRealtime only
- 0
- Like-for-like categories
- 0 / 8
Category results, on a stated basis
Each row shows the public-lane category score for both models: the BenchAlign lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.
Coding
Not comparable- Hy4 preview
- 59.2
- Estimated · #24/151
- SeedRealtime
- Not ranked
- Basis
- BenchAlign lane · 8 vs 0 public rows
- Reading
- Not comparable
Reasoning
Not comparable- Hy4 preview
- Not ranked
- SeedRealtime
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Knowledge
Not comparable- Hy4 preview
- 56.5
- Estimated · #47/183
- SeedRealtime
- Not ranked
- Basis
- BenchAlign lane · 4 vs 0 public rows
- Reading
- Not comparable
Math
Not comparable- Hy4 preview
- Not ranked
- SeedRealtime
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Multilingual
Not comparable- Hy4 preview
- Not ranked
- SeedRealtime
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Multimodal
Not comparable- Hy4 preview
- 84.8
- Unranked · 1 rankable row
- SeedRealtime
- Not ranked
- Basis
- Provisional lane · 1 vs 0 weighted rows
- Reading
- Not comparable
Instruction following
Not comparable- Hy4 preview
- Not ranked
- SeedRealtime
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
| Category | Hy4 preview | SeedRealtime | Basis | Reading |
|---|---|---|---|---|
| Agentic | 58.2Estimated · #30/152 | Not ranked | Not comparableBenchAlign lane · 13 vs 0 public rows | Not comparable |
| Coding | 59.2Estimated · #24/151 | Not ranked | Not comparableBenchAlign lane · 8 vs 0 public rows | Not comparable |
| Reasoning | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Knowledge | 56.5Estimated · #47/183 | Not ranked | Not comparableBenchAlign lane · 4 vs 0 public rows | Not comparable |
| Math | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Multilingual | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Multimodal | 84.8Unranked · 1 rankable row | Not ranked | Not comparableProvisional lane · 1 vs 0 weighted rows | Not comparable |
| Instruction following | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign) differ from the provisional-lane categories. Unranked scores sit on the lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.
Shape of the matched evidence
Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.
A shared-evidence shape is not available.
BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.
What each workload costs
Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.
Chat turn
1K fresh input + 500 output tokens
- Hy4 preview
- Self-hosted; infrastructure cost varies
- Fits in one request
- SeedRealtime
- API rate not published
- Fit state unavailable
Hy4 preview has no comparable published API token rate. SeedRealtime has no comparable published API token rate.
Repository review
50K fresh input + 3K output tokens
- Hy4 preview
- Self-hosted; infrastructure cost varies
- Fits in one request
- SeedRealtime
- API rate not published
- Fit state unavailable
Hy4 preview has no comparable published API token rate. SeedRealtime has no comparable published API token rate.
Cache-heavy agent loop
200K cached + 20K fresh input + 10K output tokens
- Hy4 preview
- Self-hosted; infrastructure cost varies
- Fits in one request
- Cached-input rate unavailable
- SeedRealtime
- API rate not published
- Fit state unavailable
- Cached-input rate unavailable
Hy4 preview has no comparable published API token rate. SeedRealtime has no comparable published API token rate.
Specification differences
Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.
SpecificationHy4 previewSeedRealtime
Context window
Maximum documented context; output-token limits may be lower.
Hy4 preview
SeedRealtime
N/A
API model ID
Hy4 preview
tencent/Hy4-preview
Tencent Hy4 preview model cardSeedRealtime
Not sourced
Cached-input rate
A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.
Hy4 preview
No comparable hosted API rate
Tencent Hy4 preview model cardSeedRealtime
No comparable hosted API rate
ByteDance model documentationDocumented inputs
Hy4 preview
Not sourced
SeedRealtime
Not sourced
Documented outputs
Hy4 preview
Not sourced
SeedRealtime
Not sourced
Provider availability
Hy4 preview
Not sourced
SeedRealtime
Not sourced
Reasoning profile
Hy4 preview
Reasoning
SeedRealtime
Non-Reasoning
Weight access
Hy4 preview
Open Weight
SeedRealtime
Proprietary
License
Hy4 preview
Open Weight
SeedRealtime
Proprietary
Release date
Hy4 preview
2026-08-28
SeedRealtime
2026-08-05
If you already use one of these models
- Deployment change
- The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
- Quality signal
- The public evidence has no benchmark result shared by both models, so it does not support a quality verdict.
- Workload cost
- A complete comparable API-rate estimate is not available for both models.
- Context tradeoff
- A complete documented context comparison is not available.
Run the same representative tasks against both endpoints before changing production traffic.
Benchmark evidence
The full public result ledger is available for audit without forcing a wide desktop table onto a phone.
Browse raw public benchmark evidence28 rows
Agentic
Terminal-Bench 2.1
Hy4 preview85.4%SourceSeedRealtime—Not directly comparable
CyberGym
Hy4 preview78.4%SourceSeedRealtime—Not directly comparable
WideResearch
Hy4 preview83.9%SourceSeedRealtime—Not directly comparable
DRACO
Hy4 preview77.2%SourceSeedRealtime—Not directly comparable
MCP Atlas
Hy4 preview83.7%SourceSeedRealtime—Not directly comparable
Toolathlon-Verified
Hy4 preview74.1%SourceSeedRealtime—Not directly comparable
APEX-Agents
Hy4 preview37.1%SourceSeedRealtime—Not directly comparable
skillsBench
Hy4 preview62.9%SourceSeedRealtime—Not directly comparable
JobBench
Hy4 preview61.7%SourceSeedRealtime—Not directly comparable
Agents' Last Exam
Hy4 preview22.8%SourceSeedRealtime—Not directly comparable
AutomationBench
Hy4 preview32.1%SourceSeedRealtime—Not directly comparable
BankerToolBench
Hy4 preview78.6%SourceSeedRealtime—Not directly comparable
HLE w/ tools
Hy4 preview55.4%SourceSeedRealtime—Not directly comparable
Coding
Terminal-Bench 2.1
Hy4 preview85.4%SourceSeedRealtime—Not directly comparable
SWE-bench Pro
Hy4 preview65.7%SourceSeedRealtime—Not directly comparable
SWE Multilingual
Hy4 preview82.9%SourceSeedRealtime—Not directly comparable
DeepSWE
Hy4 preview64.3%SourceSeedRealtime—Not directly comparable
NL2Repo
Hy4 preview58.9%SourceSeedRealtime—Not directly comparable
ProgramBench
Hy4 preview17.5%SourceSeedRealtime—Not directly comparable
PostTrain Bench
Hy4 preview35.6%SourceSeedRealtime—Not directly comparable
sweMarathon
Hy4 preview31.9%SourceSeedRealtime—Not directly comparable
Reasoning
CritPt
Hy4 preview16.9%SourceSeedRealtime—Not directly comparable
Knowledge
Math
Apex
Hy4 preview74.2%SourceSeedRealtime—Not directly comparable
Multimodal
OfficeQA Pro
Hy4 preview66.2%SourceSeedRealtime—Not directly comparable
Frequently asked questions
Which is better, Hy4 preview or SeedRealtime?
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. The page therefore keeps the decision tied to the specific documented workload.
Which is better for coding, Hy4 preview or SeedRealtime?
SeedRealtime is not ranked on the public lane for coding, so no winner is named for coding.
Which is better for agentic tasks, Hy4 preview or SeedRealtime?
SeedRealtime is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.
Which costs less, Hy4 preview or SeedRealtime?
Both models do not have comparable published API token rates, so this page does not name a universal price winner.
Which has the larger context window, Hy4 preview or SeedRealtime?
A complete documented context-window comparison is not available.
Related comparisons
Last updated September 10, 2026
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