// head_to_head
DeepSeek V4 Flash Vision Exp vs SpaceXAI: Grok 4.5
Published LiveBench scores across all seven categories, live list pricing, context windows, and the measured cost of a point of capability — for both models, side by side.
Effectively the same quality — DeepSeek V4 Flash Vision Exp is the cheaper way to get it.
The two are within 1.0 points overall, which is inside the range that effort settings alone move a LiveBench score, so treat them as quality-equivalent. DeepSeek V4 Flash Vision Exp lists 9.1× cheaper per blended million tokens. When quality ties, cost is the whole decision. DeepSeek V4 Flash Vision Exp also leads on measured cost per point of capability, at $0.0277 per point.
deepseek
DeepSeek V4 Flash Vision Exp
- Blended / 1M
- $0.330
- Context
- 1.0M
- Released
- Aug 21, 2026
- Overall score
- 76.8
x-ai
SpaceXAI: Grok 4.5
- Blended / 1M
- $3.00
- Context
- 500K
- Released
- Jul 8, 2026
- Overall score
- 75.8
Specs and pricing
| Metric | DeepSeek V4 Flash Vision Exp | SpaceXAI: Grok 4.5 |
|---|---|---|
| LiveBench overall Mean of the seven LiveBench category scores, 0–100. Higher is better. | 76.8 | 75.8 |
| Cost per point Measured benchmark spend divided by overall score — dollars per point of capability. | $0.0277win | $0.0720 |
| Blended price / 1M 3:1 input:output mix, the usual shape of production traffic. | $0.330win | $3.00 |
| Input price / 1M | $0.220win | $2.00 |
| Output price / 1M | $0.660win | $6.00 |
| Cached input / 1M Price of an input token served from the prompt cache, where the provider publishes one. | $0.0070win | $0.300 |
| Context window | 1.0Mwin | 500K |
| Max output tokens | 384K | — |
Benchmarks by category
An overall score averages away the thing you probably care about. These are the seven LiveBench categories scored separately — DeepSeek V4 Flash Vision Exp on top, SpaceXAI: Grok 4.5 below, both out of 100.
What each one costs to run
Per-token prices are hard to feel. These are monthly list costs for both models across five workload shapes, using each provider's published cached-input rate where there is one.
| Workload | DeepSeek V4 Flash Vision Exp | SpaceXAI: Grok 4.5 |
|---|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $90.26/mo | $837.60/mo |
| RAG assistant 8K in / 600 out × 100K requests | $130.40/mo | $1280.00/mo |
| Coding agent 40K in / 4K out × 20K requests | $109.52/mo | $1128.00/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $258.85/mo | $2365.00/mo |
| Bulk classification 500 in / 20 out × 5M requests | $509.50/mo | $4750.00/mo |
Which should you pick?
You are running this at volume
DeepSeek V4 Flash Vision Exp
Lowest measured cost per point of capability at $0.0277 per point — the gap compounds with every request.
The workload is coding or agentic work
DeepSeek V4 Flash Vision Exp
Leads on agentic coding — 65.1 against 56.5.
You need to fit large documents in one call
DeepSeek V4 Flash Vision Exp
Wider context window — 1.0M against 500K.
DeepSeek V4 Flash Vision Exp vs SpaceXAI: Grok 4.5 FAQ
Which is better, DeepSeek V4 Flash Vision Exp or SpaceXAI: Grok 4.5?
Effectively the same quality — DeepSeek V4 Flash Vision Exp is the cheaper way to get it. The two are within 1.0 points overall, which is inside the range that effort settings alone move a LiveBench score, so treat them as quality-equivalent. DeepSeek V4 Flash Vision Exp lists 9.1× cheaper per blended million tokens. When quality ties, cost is the whole decision. DeepSeek V4 Flash Vision Exp also leads on measured cost per point of capability, at $0.0277 per point.
Is DeepSeek V4 Flash Vision Exp cheaper than SpaceXAI: Grok 4.5?
DeepSeek V4 Flash Vision Exp is cheaper. On a 3:1 input:output blend, DeepSeek V4 Flash Vision Exp lists at $0.330 per million tokens and SpaceXAI: Grok 4.5 at $3.00 — DeepSeek V4 Flash Vision Exp is 9.1× cheaper. Input and output are priced separately — DeepSeek V4 Flash Vision Exp charges $0.220 in and $0.660 out, SpaceXAI: Grok 4.5 charges $2.00 and $6.00 — so the model that looks cheaper flips depending on how output-heavy your workload is.
DeepSeek V4 Flash Vision Exp vs SpaceXAI: Grok 4.5: which scores higher on benchmarks?
DeepSeek V4 Flash Vision Exp scores 76.8 and SpaceXAI: Grok 4.5 scores 75.8 overall on LiveBench, the mean of its seven categories. That gap is inside the range that effort settings alone move a score, so treat them as equivalent on published quality. Category scores differ from the overall figure — a model can lead on reasoning and trail on coding, which the per-category table above breaks out.
Which gives better value for money, DeepSeek V4 Flash Vision Exp or SpaceXAI: Grok 4.5?
DeepSeek V4 Flash Vision Exp. Cost per point divides the measured dollars LiveBench spent running the benchmark by the score it earned, so it captures something token pricing misses: a reasoning model can emit many times more tokens than its per-token rate suggests. DeepSeek V4 Flash Vision Exp works out at $0.0277 per point and SpaceXAI: Grok 4.5 at $0.0720.
Does DeepSeek V4 Flash Vision Exp or SpaceXAI: Grok 4.5 have a bigger context window?
DeepSeek V4 Flash Vision Exp has the larger context window: 1.0M for DeepSeek V4 Flash Vision Exp against 500K for SpaceXAI: Grok 4.5. Note that a window you can fill is not a window you should fill — retrieval quality usually degrades well before the limit, and you pay for every token you put in it.
Do DeepSeek V4 Flash Vision Exp and SpaceXAI: Grok 4.5 support prompt caching?
Both publish a cached-input rate: $0.0070 per million for DeepSeek V4 Flash Vision Exp and $0.300 for SpaceXAI: Grok 4.5, against full input rates of $0.220 and $2.00. On a workload with a long stable prefix — a system prompt, a tool schema, a retrieved corpus — that changes the economics more than the headline price does.
Related comparisons
How these numbers are produced
- Price — provider list price from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores — LiveBench release 2026-06-25, using their own category map. Each model shows its strongest published run. A blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
- “Win” — awarded only past a threshold: one full point on a benchmark score, 10% on a price, 25% on a context window. Anything tighter reports as a tie, because effort settings alone move a LiveBench score by more than that.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.