Gemini 3.1 Flash TTS Preview vs Mixtral 8x22B Instruct v0.3
Gemini 3.1 Flash TTS Preview (2026) and Mixtral 8x22B Instruct v0.3 (2024) are compact production models from Google DeepMind and MistralAI. Gemini 3.1 Flash TTS Preview ships a 16k-token context window, while Mixtral 8x22B Instruct v0.3 ships a 64k-token context window. On pricing, Gemini 3.1 Flash TTS Preview costs $1/1M 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.
Gemini 3.1 Flash TTS Preview is ~100% cheaper at $1/1M; pay for Mixtral 8x22B Instruct v0.3 only for long-context analysis.
Decision scorecard
Local evidence first| Signal | Gemini 3.1 Flash TTS Preview | Mixtral 8x22B Instruct v0.3 |
|---|---|---|
| Best for | general production evaluation | tool-calling agents |
| Decision fit | General | Agents and JSON / Tool use |
| Context window | 16k | 64k |
| Cheapest output | - | $2/1M tokens |
| Provider routes | 1 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Use Gemini 3.1 Flash TTS Preview when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
- Mixtral 8x22B Instruct v0.3 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Mixtral 8x22B Instruct v0.3 uniquely exposes Function calling in local model data.
- Local decision data tags Mixtral 8x22B Instruct v0.3 for Agents and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemini 3.1 Flash TTS Preview
Unavailable
Cheapest tracked route/tier: Google AI Studio
Mixtral 8x22B Instruct v0.3
$2,100
Cheapest tracked route/tier: Replicate API
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Gemini 3.1 Flash TTS Preview and Mixtral 8x22B Instruct v0.3; plan for SDK, billing, or endpoint changes.
- Mixtral 8x22B Instruct v0.3 adds Function calling in local capability data.
- No overlapping tracked provider route is sourced for Mixtral 8x22B Instruct v0.3 and Gemini 3.1 Flash TTS Preview; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-15 | 2024-07-01 |
| Context window | 16k | 64k |
| Parameters | — | 8x22B |
| Architecture | Decoder Only | Mixture of Experts |
| License | Proprietary | Apache 2.0OSI-approved |
| Openness | Proprietary | Open source |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | - | 2024-01 |
Pricing and availability
| Pricing attribute | Gemini 3.1 Flash TTS Preview | Mixtral 8x22B Instruct v0.3 |
|---|---|---|
| Input price | $1/1M tokens | $2/1M tokens |
| Output price | - | $2/1M tokens |
| Providers |
Capabilities
| Capability | Gemini 3.1 Flash TTS Preview | Mixtral 8x22B Instruct v0.3 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | Yes |
| Tool use | No | No |
| Structured outputs | No | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Deep dive
The capability footprint differs most on function calling: Mixtral 8x22B Instruct v0.3. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: Gemini 3.1 Flash TTS Preview has $1/1M input tokens and Mixtral 8x22B Instruct v0.3 has $2/1M input tokens. Provider availability is 1 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Gemini 3.1 Flash TTS Preview when provider fit and lower input-token cost are central to the workload. Choose Mixtral 8x22B Instruct v0.3 when long-context analysis and larger context windows are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.
FAQ
Which has a larger context window, Gemini 3.1 Flash TTS Preview or Mixtral 8x22B Instruct v0.3?
Mixtral 8x22B Instruct v0.3 supports 64k tokens, while Gemini 3.1 Flash TTS Preview supports 16k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Gemini 3.1 Flash TTS Preview or Mixtral 8x22B Instruct v0.3 open source?
Gemini 3.1 Flash TTS Preview is listed under Proprietary. Mixtral 8x22B Instruct v0.3 is listed under Apache 2.0. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for function calling, Gemini 3.1 Flash TTS Preview or Mixtral 8x22B Instruct v0.3?
Mixtral 8x22B Instruct v0.3 has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Gemini 3.1 Flash TTS Preview and Mixtral 8x22B Instruct v0.3?
Gemini 3.1 Flash TTS Preview is available on Google AI Studio. Mixtral 8x22B Instruct v0.3 is available on Replicate API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Gemini 3.1 Flash TTS Preview over Mixtral 8x22B Instruct v0.3?
Gemini 3.1 Flash TTS Preview is ~100% cheaper at $1/1M; pay for Mixtral 8x22B Instruct v0.3 only for long-context analysis. If your workload also depends on provider fit, start with Gemini 3.1 Flash TTS Preview; if it depends on long-context analysis, run the same evaluation with Mixtral 8x22B Instruct v0.3.
Continue comparing
Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.