GLM 5.3 Flash API Provider Benchmarking & Analysis
This analysis is intended to support you in choosing the best API provider of GLM 5.3 Flash for your use-case.
Fastest
LithosAI (FP4, ULTRA CHAT)LithosAI (FP4)
Inco (FAST)
Databricks
ParasailOutput speed
Total 21 providers
Lowest Latency
LithosAI (FP4, ULTRA CHAT)LithosAI (FP4)Inco (FAST)DatabricksParasailTime to first answer token
Total 21 providers
Lowest Price
DeepInfra
Bitdeer AI
Zai
Fireworks
BasetenBlended price (per 1M tokens)
Total 21 providers
GLM-5.3-Flash is available through 21 API providers, each offering different performance characteristics and pricing. Below is a comparison of the key metrics across providers.
- For output speed, the top providers are LithosAI (FP4, ULTRA CHAT) (730.6 t/s), LithosAI (FP4) (532.3 t/s), and Inco (FAST) (462.3 t/s). Speed varies significantly across providers, with a 2833% difference between the fastest and slowest.
- For latency, LithosAI (FP4, ULTRA CHAT) (3.23s), LithosAI (FP4) (5.56s), and Inco (FAST) (8.26s) offer the lowest time to first answer token.
- For pricing, DeepInfra (0.05), Bitdeer AI (0.05), and Zai (0.10) offer the lowest blended prices per 1M tokens. Prices vary up to 6.0x across providers.
- LithosAI (FP4, ULTRA CHAT) offers the best performance with both the highest speed and lowest latency. For cost optimization, DeepInfra provides the most competitive pricing.
Update: Default performance benchmarking workload has updated to 10k input tokens to better reflect production use cases. You can still select different workloads above.
Pricing
Pricing: Cache Hit, Input, and Output
Pricing: Blended Price
Pricing: Cache Discount
Output Speed vs. Price
Speed
Measured by Output Speed (tokens per second)
Output Speed: GLM 5.3 Flash
Latency vs. Output Speed
Latency
Measured by Time (seconds) to First Token
Time to First Answer Token
End-to-End Response Time
Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Key Comparison Metrics & API Features
 Modal | 1M | Open | $1.03 | 95 | 0.96 | 27.29 | 21.06 | ||
| Zai | 1M | Open | $0.25 | 45 | 3.31 | 59.12 | 44.64 | ||
| Baseten | 1.05M | Open | $0.60 | 225 | 0.54 | 11.65 | 8.89 | ||
 Novita | 1.05M | Open | $0.29 | 61 | 2.60 | 43.51 | 32.72 | ||
| DeepInfra | 1M | Open | $0.34 | 24 | 1.46 | 105.74 | 83.42 | ||
 SiliconFlow | 1M | Open | $0.50 | 54 | 2.67 | 49.32 | 37.32 | ||
 Wafer | 1M | Open | $0.45 | 58 | 1.13 | 44.46 | 34.66 | ||
 Together AI | 1.05M | Open | $0.47 | -- | -- | -- | -- | ||
| Fireworks | 1.05M | Open | $0.37 | 171 | 1.36 | 16.02 | 11.73 | ||
| Databricks | 1M | Open | $0.28 | 138 | 0.83 | 18.93 | 14.48 | ||
 GMI | 1M | Open | $0.52 | 59 | 3.09 | 45.45 | 33.89 | ||
| Parasail | 1M | Open | $0.67 | 193 | 0.93 | 13.91 | 10.38 | ||
| Bitdeer AI | 1M | Open | $0.14 | 196 | 2.10 | 14.89 | 10.23 | ||
 FriendliAI | 1M | Open | $0.51 | 130 | 0.96 | 20.15 | 15.36 | ||
 Nebius | 1.05M | Open | $1.19 | 204 | 2.72 | 14.95 | 9.78 | ||
 DigitalOcean | 1.05M | Open | $0.42 | 44 | 1.13 | 57.81 | 45.35 | ||
 CoreWeave | 1M | Open | $0.76 | 128 | 1.70 | 21.20 | 15.60 | ||
 Crusoe | 1.05M | Open | $0.81 | 125 | 0.91 | 20.93 | 16.01 | ||
| Inco | 1M | Open | $0.46 | 464 | 17.76 | 23.14 | 4.31 | ||
Frequently Asked Questions
Common questions about GLM 5.3 Flash providers
GLM 5.3 Flash is available through 21 API providers: Modal, Zai, Baseten, Novita, DeepInfra, SiliconFlow, Wafer, Together AI, Fireworks, Databricks, GMI, Parasail, Bitdeer AI, FriendliAI, Nebius, DigitalOcean, CoreWeave, Crusoe (FP4), Inco (FAST), LithosAI (FP4), and LithosAI (FP4, ULTRA CHAT). Each provider offers different performance characteristics and pricing.
GLM 5.3 Flash is currently available through 21 API providers that we benchmark and track.
The fastest providers for GLM 5.3 Flash by output speed are LithosAI (FP4, ULTRA CHAT) (730.6 t/s), LithosAI (FP4) (532.3 t/s), and Inco (FAST) (462.3 t/s). Output speed measures how quickly tokens are generated after the model starts responding.
The providers with the lowest time to first answer token for GLM 5.3 Flash are LithosAI (FP4, ULTRA CHAT) (3.23s), LithosAI (FP4) (5.56s), and Inco (FAST) (8.26s). Lower latency means faster initial response time.
The most affordable providers for GLM 5.3 Flash by blended price are DeepInfra ($0.05 per 1M tokens), Bitdeer AI ($0.05 per 1M tokens), and Zai ($0.10 per 1M tokens). Blended price uses a 7:2:1 cache hit/input/output token ratio.
The providers with the lowest input token pricing for GLM 5.3 Flash are DeepInfra ($0.07 per 1M input tokens), Bitdeer AI ($0.07 per 1M input tokens), and Zai ($0.15 per 1M input tokens).
The providers with the lowest output token pricing for GLM 5.3 Flash are DeepInfra ($0.25 per 1M output tokens), Bitdeer AI ($0.25 per 1M output tokens), and Zai ($0.50 per 1M output tokens).
Output speed for GLM 5.3 Flash varies significantly across providers. LithosAI (FP4, ULTRA CHAT) is the fastest at 730.6 t/s, which is 29.3x faster than DeepInfra at 24.9 t/s.
All 21 providers of GLM 5.3 Flash support JSON mode for structured output.
All 21 providers of GLM 5.3 Flash support function calling (tool use).
For GLM 5.3 Flash, LithosAI (FP4, ULTRA CHAT) offers the best performance with highest speed and lowest latency. For cost optimization, DeepInfra provides the most competitive pricing.
When choosing a provider for GLM 5.3 Flash, consider: output speed (for throughput-intensive tasks), latency (for interactive applications requiring quick first responses), pricing (for cost-sensitive workloads), and API features like JSON mode or function calling.
Yes, provider performance can vary over time due to infrastructure changes, load balancing, and updates. We continuously benchmark all providers and display historical performance trends in the "Over Time" charts.
For information about GLM 5.3 Flash's intelligence, capabilities, modalities, and how it compares to other models, see the model overview page. View model overview