Qwen3.8 Flash vs Grok 4.5
At a Glance
| Compare |  Qwen3.8 FlashQwen | Grok 4.5xAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | UnrankedNot in the 46-model eligible cohort | #25 of 4660.1 score · 3/3 sources · complete |
| CostLower is better · Published-token output estimate | #4 of 44$0.021 per LiveBench case | #15 of 44$0.063 per LiveBench case |
| EfficiencyHigher is better · MM Efficiency v1.5 | UnrankedNot in the 38-model eligible cohort | #11 of 3859.2 score · 3/3 sources · complete |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.113Deepinfra ↗ · Sep 21, 2026 | $2.00Xai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $0.382Deepinfra ↗ · Sep 21, 2026 | $6.00Xai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 1,000K | 500K |
| Model facts checked | Aug 29, 2026View model evidence → | Sep 3, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | Qwen3.8-Flash | Grok 4.5 |
|---|---|---|
| LiveBench2026-06-25 · overall · leader | 79.1299% of row best · percent · qwen3.8-flash-next · 54,438 output tokens / case | 80.01100% of row best · percent · grok-4.5 · 10,517 output tokens / case |
| ToneBench2026-09-11-10-task-4ef099199c9c · overall_score · unverified | 83.20100% of row best · points · Qwen3.8 Flash · 24,187 output tokens / case | 82.2399% of row best · points · Grok 4.5 · 2,688 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark winsNo overall winner | 1 benchmark winNo overall winner |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | Qwen3.8-Flash | Grok 4.5 |
|---|---|---|
| Developer | Qwen | xAI |
| Family | Qwen3 8 Flash | Grok 4 |
| Model | Qwen3.8-Flash | Grok 4.5 |
| Version | Qwen3.8-Flash | Grok 4.5 |
| Lifecycle | active | active |
| Released | Unknown | 2026-07-16 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image, Video | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000K | 500K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Alibaba Cloud Model Studio (Standard), Deepinfra (Standard), Openrouter (Standard), Together Ai (Standard) | Xai (Standard) |
| Capabilities | agents, chat, computer-use, reasoning, structured_outputs, tools, vision | chat, generation, reasoning, structured_outputs, tools |
Qwen3.8 Flash Capabilities
Grok 4.5 Capabilities
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Primary Evidence
Sources and Freshness
Questions
Qwen3.8 Flash vs Grok 4.5 FAQs
Is Qwen3.8 Flash or Grok 4.5 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Qwen3.8 Flash and Grok 4.5, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Qwen3.8 Flash or Grok 4.5?+
Qwen3.8 Flash is $0.113 and Grok 4.5 is $2.00 per million tokens, so Qwen3.8 Flash is cheaper on this metric. Qwen3.8 Flash is $0.382 and Grok 4.5 is $6.00 per million tokens, so Qwen3.8 Flash is cheaper on this metric.
Which has a larger context window, Qwen3.8 Flash or Grok 4.5?+
Qwen3.8 Flash has the larger sourced context window. Qwen3.8 Flash supports 1,000K and Grok 4.5 supports 500K.
Which performs better in benchmarks, Qwen3.8 Flash or Grok 4.5?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Qwen3.8 Flash or Grok 4.5 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Qwen3.8 Flash is not marked open weight; Grok 4.5 is not marked open weight.
Can Qwen3.8 Flash and Grok 4.5 understand images?+
Qwen3.8 Flash is documented with image input; Grok 4.5 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Qwen3.8 Flash or Grok 4.5?+
Neither has a larger sourced maximum output. Qwen3.8 Flash is 131K and Grok 4.5 is —.
Do Qwen3.8 Flash and Grok 4.5 support reasoning and tool use?+
Qwen3.8 Flash: reasoning, tool calling, and image input. Grok 4.5: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Qwen3.8 Flash or Grok 4.5?+
Qwen3.8 Flash has 4 sourced provider routes; Grok 4.5 has 1, so Qwen3.8 Flash has broader tracked availability.
Which offers better value, Qwen3.8 Flash or Grok 4.5?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.