LLM Reference

Hunyuan Hy3 Preview vs o3

Hunyuan Hy3 Preview (2026) and o3 (2025) are frontier-tier reasoning models from Tencent AI Lab and OpenAI. Hunyuan Hy3 Preview ships a 262k-token context window, while o3 ships a 200k-token context window. On SWE-bench Verified, Hunyuan Hy3 Preview leads by 2.7 pts. On pricing, Hunyuan Hy3 Preview costs $0.07/1M input tokens versus $2/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Hunyuan Hy3 Preview is ~2930% cheaper at $0.07/1M; pay for o3 only for coding workflow support.

Decision scorecard

Local evidence first
SignalHunyuan Hy3 Previewo3
Best forreasoning-heavy apps, tool-calling agents, and provider-routed productionreasoning-heavy apps, multimodal apps, and tool-calling agents
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window262k200k
Cheapest output$0.26/1M tokens$8/1M tokens
Provider routes2 tracked3 tracked
Shared benchmarksSWE-bench Verified leader2 shared

Decision tradeoffs

Choose Hunyuan Hy3 Preview when...
  • Hunyuan Hy3 Preview holds a shared-benchmark lead on SWE-bench Verified, ahead by 2.7 points.
  • Hunyuan Hy3 Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Hunyuan Hy3 Preview has the lower cheapest tracked output price at $0.26/1M tokens.
  • Local decision data tags Hunyuan Hy3 Preview for Coding, RAG, and Agents.
Choose o3 when...
  • o3 holds a shared-benchmark lead on Google-Proof Q&A, ahead by 0.5 points.
  • o3 has broader tracked provider coverage for fallback and route flexibility.
  • o3 uniquely exposes Vision, Multimodal, and Structured outputs in local model data.
  • Local decision data tags o3 for Coding, RAG, and Agents.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate Hunyuan Hy3 Preview

Hunyuan Hy3 Preview

$118

Cheapest tracked route/tier: OpenRouter

o3

$3,600

Cheapest tracked route/tier: OpenAI API

Estimated monthly gap: $3,482. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Hunyuan Hy3 Preview -> o3
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • o3 is $7.74/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • o3 adds Vision, Multimodal, and Structured outputs in local capability data.
o3 -> Hunyuan Hy3 Preview
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Hunyuan Hy3 Preview is $7.74/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and Structured outputs before moving production traffic.

Specs

Specification
Released2026-04-222025-04-16
Context window262k200k
Parameters295B—
ArchitectureDense + MoE HybridDecoder Only
LicenseTencent Hunyuan Community LicenseProprietary
OpennessOpen weightsProprietary
WeightsAvailableNot released
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: conditional
Knowledge cutoff-2024-06

Pricing and availability

Pricing attributeHunyuan Hy3 Previewo3
Input price$0.07/1M tokens$2/1M tokens
Output price$0.26/1M tokens$8/1M tokens
Providers
OpenRouterTencent Cloud TI Platform
OpenAI APIOpenRouterVercel AI Gateway

Capabilities

CapabilityHunyuan Hy3 Previewo3
VisionNoYes
MultimodalNoYes
ReasoningYesYes
JSON / Tool useYesYes
Structured outputsNoYes
Code executionNoYes
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkHunyuan Hy3 Previewo3
SWE-bench Verified74.471.7
Google-Proof Q&A87.287.7

Continue comparing

Model pages
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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.